The Arisaka Optic Leveler is an inexpensive, easy-to-use tool for leveling scopes mounted in rings or one-piece mounts. The base plate sits on the Picatinny rail or one-piece mount just below the turret cluster of the scope, and then the matching wedge is inserted from the side. As the 11 degree ramped surfaces of the wedge and base engage, the top of the wedge rises upwards and contacts the turret cluster, automatically leveling it. This product includes the leveler base and both small and large wedges. The small wedge requires a space between the rail/mount and turret cluster from 0. 190" to 0. 730". The large wedge requires a space between the rail/mount and turret cluster from 0. 680" to 1. 200". Directions for use: 1. Place scope in rings or one-piece mount. Tighten rings to remove slack, but leave loose enough that the scope can still be rotated by hand. 2. Place the leveler base on the Picatinny rail or one-piece mount directly below the turret cluster of the scope. The angled slot should be on the top side. 3. Insert the leveler wedge into the slot on the base from the side until it contacts the bottom of the turret cluster. 4. Gently apply pressure to the wedge until the scope rotates and is leveled. 5. Tighten one scope ring according to the torque specifications provided by the ring/mount manufacturer. 6. Remove the optic leveler. 7. Tighten the other ring according to the torque specifications provided by the ring/mount manufacturer. Use of the Arisaka Optic Leveler makes the assumption that the scope's turret cluster and reticle are aligned, which may not be the case with poor quality scopes. Material: 6061 clear anodized aluminum Firearms or other accessories shown in above product photos are not included.