Specification: Product Name: Scope Mount Leveling Adjustment Tool Material: Aluminum Color: Silver Packaging: 3 pcs. Please note the following information when using the product. This product includes the leveling base and both small and large wedges. The small wedge requires a gap between the rail/mount and the turret cluster from 0.190\" to 0.730\". The large wedge requires a gap between the rail/mount and the turret cluster from 0.680\" to 1.200\". User Instructions: Place the scope in the rings or the monolithic mount. Tighten the rings to remove slack, but leave them loose enough so that the scope can still be rotated by hand. Place the leveling base on the Picatinny rail or monolithic mount directly under the scope's turret cluster. The angled slot should be on the top side. Insert the leveling wedge into the slot on the base from the side until it makes contact with the bottom of the turret block. Gently push the wedge until the scope rotates and is level. Tighten one scope ring to the ring/mount manufacturer's torque specifications. Remove the optical leveler. Tighten the second ring to the ring/mount manufacturer's torque specifications. The use of the Arisaka Optic Leveler assumes that the scope's turret cluster and reticle are aligned, which may not be the case with poor quality scopes.