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ONYX Invincipole Infinity- Black 18mm/14mm Downstem

(30 customer reviews)



The new and improved Invincipole Infinity series is an 18mm/14mm joint fitting downstem. It is precision crafted from an aerospace-grade aluminum module with a full-body hard-anodization and a sleek, satin finish. This device is best paired with the Invincibowl but it comfortably admits any 14mm bowl of your choosing. Invincipole features the world’s first Telescoping Technology extending from 3 inches - 5 ¾ inches, fitting a wide range of commonly distributed bongs. The Infinity series features the new pressure lock and release taper joints. The pressure responsive design secures your downstem into the bong then easily releases with a simple click anti-jamming operation, preventing the downstem from wedging in the bong. Meanwhile, internal joints provide superior holding strength plus easy bowl removal with a fluid twist and pull motion. The refined hex head allows you to maneuver the piece with little effort along anti-roll stability while cleaning. Precision lightning ridges make pole extension easy while the inner O-ring seals the directed airflow. The downstem also features a removable multi-hole diffuser cap that houses the final ash defense system, our proprietary stainless-steel screen. This high-flow mesh is reliable, effective, and enhances your smoking experience tenfold.

How to know if our downstems fit your bong


Easily switch between bongs without struggling to find the perfect downstem. The Onyx Invincipole will adjust to fit nearly all of your glassware! Simply grasp the cap then pull to extend or push to retract the device. The Invincipole is universally compatible in length between 3 inches to just under 6 inches. Enjoy lifestyle and health benefits with this revolutionary gadget!

The new Infinity Series introduced pressure-responsive joints that provide maximum slip resistance and easy removal. Now you can prevent your downstem from wedging in your bong with a simple click! Drastically improve water filtration with the multihole diffuser while the integrated secure-screen system works its magic. The cap holds a proprietary mesh which allows for a smoother, cleaner hit. This shield will safeguard your bong water from ash and other particulate matter. When you’re ready to clean your bong, simply swap out screens too, and you’re ready for many great sessions!

Protection backed by a Lifetime Guarantee

This downstem is perfect for the frugal smoker who likes to save money, the savvy smoker who is looking for an all-inclusive device, and everyone in between! Invincibowl is known for best-in-class smoking accessories that allow the end-user to enjoy sessions reliably and comfortably!

Additional information

Weight2.5 oz
Dimensions4.75 × 1 × 1 in

30 reviews for ONYX Invincipole Infinity- Black 18mm/14mm Downstem

  1. Smoking Mum (verified owner)

    My son wanted this for his 42nd birthday and he says he loves it!

  2. Herbert (verified owner)

    love good accessories- very happy to find this and add to my collection

  3. washdawg68

    After a week of using this product, I am VERY pleased. The fit and finish and build quality is great. Very nice and study! Recommend!

  4. K. Eliz (verified owner)

    Very nice set.
    Would expect to pay more for the quality.
    Only con is they don't have a bigger bowl size but thats ok with me

  5. Murph

    Great for everyyday

  6. TG (verified owner)

    These aluminum stems perfectly fit my downstem and "catch" everything. These are excellent quality, with a reasonable price. The 20 pack of screens I bought are also great

  7. jason m (verified owner)

    use them all the time

  8. Evie Richardson

    Get these! Fantastic for anyone. Stay away from the glass, and stick with these.

  9. Green

    This is the greatest invention ever. It came quickly, on time, well packaged. AND IT IS SO MUCH FUN. So glad its plastic so I don't have to worry about dropping it.

  10. Noelle (verified owner)

    At first I bought the bowl and then after using it for a few weeks I realized I had made a huge mistake. I should have bought the downstem too. Now that I have it I dont know how I ever lived without it. It even has a little screen on the inside. Honestly I dont think Im going to use that one once the free screens run out because the bowl does a good job of keeping my bongs clean already.

  11. Eliana (verified owner)

    Dropped it within the first few minutes of opening it. Works perfectly. Get one.

  12. riley (verified owner)

    good products i recommend them

  13. Kelsy (verified owner)

    These are perfect!! I got myself a second bundle already!

  14. John (verified owner)

    5 stars for the hardware quality!

  15. H. Gonzalez

    This is a very sturdy and sleek sliding system. When I first saw my buddy using it, I couldn't believe my eyes. Having one for myself feels good. I’m very pleased with the quality and I will buy this again with my stimulus money.

  16. Cardinals_Fan (verified owner)

    Everything worked well. Comes with extra screens. Awsome product.

  17. D H. (verified owner)

    Super smooth and the looks stand out from the normal! Bought mine with the bowl and I use both every damn day.

  18. T (verified owner)

    Really nice product and well built


  19. Chris (verified owner)

    I love that this thing fits different lengths and the bowl fits nicely into it. Very quality build and hands down the best conepiece I have ever used.

  20. HenJialo

    Love mine!!!! ????❤️

  21. Jean Smith (verified owner)

    came as described and works perfect, 10/10

  22. jay (verified owner)

    It has a very good, solid, well-built product that should last a lot longer than our glass counterparts. It feels well made with a premium composite material that looks and is durable- no poor engineering here. The thing comes with a lifetime guarantee with free replacement which is a perk. Only time will tell and I will update my review if something goes wrong, but these products work very well so far.

  23. Andrea K.

    I was unsure about this but used a code and got this fabulous mechanics for under 40$ The overall quality is very high and I expect this to last a lifetime. I love the smooth pull and the variety of colors is great too

  24. Clayton Sparks from Park City (verified owner)

    Got home early from work today and as I am sitting on porch with a cold one, UPS pulls up with my new downstem pole. This set is awesome. My 2nd time puchasing from this company and I am very satisfied. Everything was in its place in the very sturdy case. I really like the new packaging too. Will continue to buy from them.

  25. Arturo Morales (verified owner)

    This downstem is smooth, doesn't ever get stuck, and looks good. This probably isn't going to be a deal breaker for anyone, but it's worth mentioning that the stem only comes in an 18mm. Very solid though.

  26. HippieJeff

    A sturdy little guy.. Would buy again 10 out of 10.

  27. John (verified owner)

    I have been able to pull out my 16 year old 5ft tube;; thank you invincibowl

  28. Alex B (verified owner)

    I've been smoking weed for a while now to treat my social anxiety and have been looking for an alternative to regular bowls when I found Invincibowl. I was skeptical about the low price,and checked the reviews before deciding to bite the bullet,man this thing kicks so much ass,beautiful color,great multichamber design,and holds on keif!!, my overall score is a 5/5. I wish they would come out with a purple one too!

  29. F G

    Excellent downstem for all your "tobacco" needs 😉

  30. Matthew

    Great product again Invincibowl! Love that this one downstem fits so many of my bongs.

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