Description Description: HIGH QUALITY: Optic leveler is made of high quality aluminum material, durable. FEATURE: Lightweight, easy to install. FUNCTION: Use of the this optic leveler makes the assumption that the scopes turret cluster and reticle are aligned, which may not be the case with poor quality scope. USAGE: Place scope on rings. Tighten rings to remove slack, but leave loose enough that the scope can still be rotated by hand. Place the leveler base on the rail mount directly below the turret cluster of the scope. The angled slot should be on the top side. Insert the leveler wedge into the slot on the base from the side until it s the bottom of the turret cluster. Gently apply pressure to the wedge until the scope rotates and is leveled. TIP: For more information, please customer service. Specification: Material: Aluminum Optional Color: Black, Brown, Argent Size Chart: 7.3cm / 2.87inch Package Includes: 3 PiecesOptic Leveler Note: Please allow slightly errors due to manual measurement and different monitors.