BL Grinder 3-part bio-degradableA recyclable grinder made of plastic? Yes, it exists! And that's if it's a special plastic made from hemp! This 3 part grinder from Black Leaf which hides a storage compartment in the bottom is 100% biodegradable. The pyramid or shark shaped teeth are sharp and strong and crush even harder material reliably. A strong magnet ensures a secure hold and easy turning. The hemp plastic has a very pleasant haptic.