There is zero plastic in Santa Cruz Shredder's hemp grinders. They use all-natural hemp with a hemp-based binder, so you can feel good about throwing it in household garbage. The grinder itself is 100% biodegradable. Santa Cruz Shredder hemp grinders are extremely durable! After nearly a year of hard labor, their test models did not show any sign of slowing down. Designed to give a consistent fluffy grind that Santa Cruz Shredder is known for. Santa Cruz Shredder colour hemp grinders are made with natural dyes to keep these completely biodegradable. Sold as a display of 16 3-piece grinders in assorted colours.