Aerospaced Herb Grinder 4 Piece (2.5")Description Aerospaced brand grinders are some of the best in the industry. Crafted from Aerospaced grade aluminum and anodized for a smooth finish, you can't go wrong with an Aerospaced brand grinder! The rugged and reliable Aerospaced grinder thoroughly crushes material for thorough, even vaporization. The compact 63 mm size is perfect for on the go grinding. Anodized surfaces prevent metal from flaking into your herb. Durable, functional, and