There is zero plastic in these hemp grinders. Santa Cruz Shredder uses all natural hemp with a hemp-based binder. These grinders are 100% biodegradable so you can feel good about throwing them in household garbage. 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 you a consistent fluffy grind that Santa Cruz Shredder is known for.