The Magnetic Bowl with Coolgrips for Herbalizer has a stainless steel interior and CoolGrips silicon exterior. This bowl easily snaps into place and is perfectly designed and sized to make the most out of your herbs. If you would like to vaporize oils, you can use them on the Aromapad included inside the bowl. Try it out. The vapor will amaze you with every balloon you use! The Magnetic Bowl with CoolGrips is easy to use and clean. Having one of these bowls will allow you to maximize your material and save money. A small amount of herbs will certainly go a long way with the help of this product.