VERY100 30mm Offset Scope Mount with 1" Inserts Picatinny QD Cam Locks Height from top of rail to bottom of cradle: 1" Clamp attachment - two finger adjustable quick release cam locks.1 x Scope Mount is included Ring Size: 30mm (1" metal size inserts included) Anodized black matte finish.Machined from extruded aluminum alloy 6061 Overall height:2.50".Overall Length: 5.30"