257 x 20mm Picatinny Rail Mount Set 25 Grooves ScopeFeatures‎:‎ ‎- This item accepts all weaver standard rings which will enhance your firearms in a way only weaver can do ‎- Rail type‎:‎ Picatinny and weaver  ‎- Complete with screws for easy installation ‎- Number of ring slots‎:‎ 25 which make it easier to set up eye relief and find more desired placement of scopes or red dot sights on top of the receiver ‎- Light weight design   Material‎:‎ Aluminum   Package weight‎:‎ 0.142 kg Product size ‎(‎L x W x H‎)‎‎:‎ 25.70 x 2.00 x 1.00 cm / 10.12 x 0.79 x 0.39 inches Package size ‎(‎L x W x H‎)‎‎:‎ 26.00 x 2.50 x 1.50 cm / 10.24 x 0.98 x 0.59 inches Package Contents‎:‎ 1 x Mount‎,‎ 1 x Wrench‎,‎ 3 x Screw