Warne Universal Scope Level 30mm. Simply mount the Warne Scope Level on the inside of your Rifle Scope and get dialy on the reticle. Then mount the Internal Warne Scope Level to the scope turrets and get dialy on your Rifle Scope. With the white ring you can also mount back of the Warne Universal Rifle Scope Level or the orange ring but before you can mount the back you must remove the front scope ring. The orange ring is just an obstruction in the ring that you can remove. The Warne Scope Level just might save the day. Specifications for Warne Universal Scope Level: Manufacturer: Warne Color: Black Size: Standard Package Contents: Warne Universal Scope Level Warne USL30: Universal Scope Level 30mm