Specifications: Material: Aluminum alloy; Options: Black square hole; Black diamond shaped hole; Silver square hole; Silver diamond hole size: Approx. 8.3 x 1.6 x 1.2 inches (21 x 4 x 3 cm); Hole distance: 6.7 x 1.18 inches (170 mm); Fit: Left side; Weight: Approx. 7.1 - 8.5 oz (200 g). Package: 1 oz (21 g).