The RYOT 1905 2PC OCTO Ball magnetic herb grinder is one of the highest quality grinders on the market. The body is made from aged and cured rosewood, and the pins are made from stainless steel. These stainless steel pins produce a coarser grind that is perfect for rolling and pipes. The RYOT 1905 2PC OCTO Ball includes strong magnetic closures optimized for your convenience. Best of all, this grinder is made not to warp or lose pins!