Santa Cruz Shredder Grinders are engineered to perfection. With their patented tooth design, the aluminum grinders provide a perfect fluffy grind every time over and over again. Santa Cruz Grinders are also engineered with a anti seizing threads to provide an easy user experience. The four piece grinders have a stainless steel micron screen catch. Over time the finest material will collect on the bottom of the grinder. Providing the user to collect the material for use later on. Anodized in an array of colors Santa Cruz Shredders are good looking and durable.