The Switchview throw lever is made out of 6061-T6 aluminum. It is also hard anodized to provide you many years of "hard use" no matter what you're doing with your gear. 100% of the Switchview product line is manufactured in the United States of America. SPECS: Lever length: .880". Ring diameter 1.360a ^2 not including dimensions for the scope's index nub if present. The throw lever needs .225a ^2 of clearance between the scope body and the nearest object for proper operation. Mfg: Switchview Usa SPECS: Lever length: .880"., Ring diameter 1.290" not including dimensions for the scope's index nub if present. The lever needs .253" of clearance between the scope body and the nearest object for proper operation. Color: Anodized Flat Black.