205451 Model:N/A Quantity:1 piece(s) per pack Color:Color Material:Aluminum alloy Suitable Gun Type:Suitable for 20mm rail softair Specification:Convert 20mm rail to 11mm Packing List:1 x 20mm to 11mm weaver adapter Dimensions: 2.28 in x 1.54 in x 0.75 in (5.8 cm x 3.9 cm x 1.9 cm) Weight: 1.98 oz (56 g)