These grinders are made from 6061 aluminum, a premium material that is CNC-milled to ensure precision and durability.. The grinder features sharp diamond-shaped teeth that ensure an efficient and consistent grind. Mesh screens provide the perfect pollen sift, leaving out unwanted plant matter. With premium materials and a durable anodized finish, our grinders will provide you with years of reliable fun! You like fun? We got it Big! Pack Size: One (1) Grinder Diameter: 3" Pieces: Four (4) Material: Aluminum