Glass Diamond Top Caps, 30mm


(5 customer reviews)

Revolutionize your setup with these heady glass diamond top caps. We love these caps as the smooth tapered tip allows the diamond tops to seal bangers of all sizes with ease. Compatible with bangers with a top diameter between 16mm-30mm (Auto-Spinners, Terp Slurpers, Samurai Blenders, etc). Made out of solid glass, our diamond top caps are available in Clear, Blue, Yellow, Pink, and Green. The top of the diamond is 30mm wide.

Use up to 360 TerpTokens to purchase this product!


Compatible with any 16-25mm banger. The diamond is made out of solid glass, meaning it does not provide airflow. As such, it is best when used with terp slurpers, auto-spinners, samurais/blenders, or any other banger that has its own airflow.



Wipe with alcohol if sticky.

WARNING: Do not submerge hot terp pearls, marbles, or pillars into a cold solvent (eg. isopropyl alcohol) as the glass crack due to thermal shock. Wait for the terp slurper set to cool a minute before submerging or clean with a dry cotton swab. We are not responsible for items damaged due to not following cleaning procedures.


Free shipping on all US orders. Orders will be shipped within 1-2 business days in discrete packaging. You will receive a shipment confirmation email with your tracking number(s) once your order has shipped. If you need to cancel/adjust your order, change your shipping information, or have other requests, please contact us via phone at (831) 200 – 3549 or email us at immediately as orders are processed quickly.

All orders within the United States are shipped via USPS First Class or Priority Mail (depending on the size of your order). International orders are shipped via UPS. At our discretion, orders may require a signature confirmation.


If you are not satisfied with the Terporium product you purchased, we can refund the product’s purchase price if it is returned within 30 days of its arrival at the shipping address. You will be responsible for return shipping. You are only eligible for a return if your item is unused and in the same condition that you received it. At the sole discretion of Terporium, you may receive a partial refund on used or slightly damaged products. All 2nd quality quartz are final sale items, meaning they are not eligible for returns unless damaged in shipment to you, defective, or incorrect. You must return your item in the original packaging (if applicable).

If your shipment is damaged, missing, incorrect, etc., promptly email for return/refund/exchange instructions. Please include your order number and a photo (if applicable). 

To return your item, please include your order number inside the box and a brief description (i.e., refund or exchange for ____ size/color). Please ship products eligible for return to the following address: PO Box 305, Aptos CA 95001.

5 reviews for Glass Diamond Top Caps, 30mm

  1. SPACEMAN (verified owner)

    The smooth sides if the DARK BLUE 30 mm top diamond make this piece stand out. The light blue one has not Al cuts as if it were a real diamond making it impossible for the sides to seal against the banger but since these only have those diamond resembling cuts on the top ONLY the Smoothe sides create an amazing deal looks incredible too

  2. zkb0586 (verified owner)

    I’m loving this jewel. It’s amazing quality

  3. Robert Bailey (verified owner)

    Perfect color blue, matches my rig nicely. Good seal on my auto spinner.

  4. daniellemartin1218 (verified owner)

    Super high quality, shiny and definitely adds a classy element to your smoking experience!

  5. bkingsley97 (verified owner)

    Fits my 25mm auto spinner perfectly. Looks classy af on my setup 👌

Only logged in customers who have purchased this product may leave a review.