Pyrex glass

One thing to note

Higher temps allow you to extract the potent active ingredients from your herbs while the lower temps allow you to enjoy the unique flavor profiles of your botanical plant matter

It's made from 100% BPA-free

GRAV® Rocker Steamroller with Silicone Skin Silicone Colors:Teal Pyrex glassThe Rocker Steamroller is already virtually unspillable. The Rocker Steamroller with Silicone Skin is virtually unbreakable too. The glass Rocker Steamroller is encased in a protective silicone case that keeps the glass safe from minor falls and bumps from any angle. The silicone is open over the distinctive GRAV logo as well as the raised bowl, so your flame and herb only come into contact with glass. Theres also a hole over the ergonomically