Crafted from solid and lightweight aluminum, the rugged and reliable Aerospaced 2-Piece Metal Grinder thoroughly crushes material for thorough, even vaporization. The compact 50mm size is perfect for on the go grinding. Anodized surfaces prevent metal from flaking into your herb. A magnetic lid makes loading easy. Durable, functional, and affordable, the Aerospaced 2 Piece metal grinder prepares your material for excellent vaporization every session.