This is the Titanium Crusher grinder. It it lives up to it's name. It has four chambers. It has a magnetic top. It comes along in a velour carrying bag. It is a non-aluminum grinder. The metal alloy that the grinder is made of is far more superior than other aluminum grinders. The Titanium Crusher has a special coating that minimizes scratch and wear and tear overtime. Magnetic top Diamond shaped teeth Four piece design Velour carrying pouch Pollen screen No refunds, returns, or exchanges, all sales are final. We will replace any defective items with a new one. SmokeaCali 106 E 17TH ST UNIT #11 LOS ANGELES CA. 90015 www.smokeacali.com