Strong and durable 6061 Aircraft Aluminum. 3-Piece. Enjoy your pollen all the time. Smooth operation utilizing BPA-free plastic bushing. Faster and lower effort milling experience than a toothed grinder. Magnetic top and quick release lower catch. Specifications Capacity: up to 1.5g Materials: Aircraft Grade 6061-T6 Aluminum, Anodized Dimensions: 2.0in (51mm) W x 1.3in (34mm) H Weight: 4.0oz (114g