Main Features:<br />Made of aircraft grade black anodized aluminum<br />Convert your Weaver / Picatinny ( 7 / 8 inch ) rail base into a dovetail ( 3 / 8 inch ) base， so that you can use dovetail accessories<br />With quick detached ( QD ) thumbnut， easy to install<br /><br /><br /><br /><br />    Specifications<br />General<br />  Material: Aluminum                                                 <br />Specification<br />  Color: Black                                                 <br />Dimension and Weight<br />  Product weight   : 0.023 kg                                                  <br />                        Package weight   : 0.073 kg                                                  <br />                        Product size (L x W x H)   : 3.0 x 3.7 x 1.3 cm / 1.18 x 1.45 x 0.51 inches                                                  <br />                        Package size (L x W x H)  : 6.0 x 3.0 x 9.5 cm / 2.36 x 1.18 x 3.73 inches                                                 <br />Package Contents<br />  Package Contents: 2 x OK032 Weaver Picatinny 22mm to Dovetail 11mm Rail Adapter                                                 <br /><br /><br /><br />                                                <br />