Stoneware Heat Retention ceramic marbles handmade in USA using our proprietary clay, this product was created to improve heat retention during high volume sessions or people looking to increase heat in their sessions overall. Backstory: We tested this during a Blind Test at ShishaMesse 2026 in Frankfurt Germany. Bowls were packed by Matt D Morning Hookah and we asked over 50 people what they noticed. 100% of the people noticed a difference in the Alpaca Heat Marble packed bowl vs placebo and followed up with a general positivity toward the heat marble containing bowl. In addition With this new wave of "Russian style" fluff packing dark leaf using an HMD / Kaloud Lotus, this can surely achieve heat retention and increase. 10 regular marbles + 2 bonus large marbles How to use : Mix 2-3 marbles into your shisha tobacco, enjoy & feel your bowl retain heat. Clean and reuse forever Reusable Alpaca Heat Marbles were also made for: Party bowls - to retain heat with many people hitting bowl ( why we saw shisha Messe improvement vs placebo ) High heat / Russian style smokers - to increase heat and keep heat static throughout session within bowl Connoisseur smokers - looking for improvement, and a difference in standard smoke