Length of this dual bracket :8.2x 1.1 x 0.11 inches/21 x 3 x 0.3 centimeters；Made of aluminum alloy,precisely match the finish of cameras. | Designed with 1/4 inches and 3/8 inches screw hole; Also comes with 2 pieces of 1/4 inches adapter screws | New design: it supports 2 cameras or flashes with hot shoe mount adapter at the same time | Equipped with non-slip rubber pad, improving the anti-shake effects. | Single Dimensions:8.2x 1.1 x 0.11 inches/21 x 3 x 0.3 centimeters,Maximum loading capacity:3 kilograms,2.25 ounces/ 63 grams weight;great portability, easy to bring with you in any situation£»Note: Without Hot Shoe Socket£¬Flash and light stand are not included