The Talley 1 Inch Screw Lock Detachable Ring (High) is famous for precise tolerances. CNC automated equipment and stringent quality control have vaulted Talley products to the top of the scope ring industry. Provides repeatability, flexibility, strength and durability for the most discriminating of sportsmen. Repeatability and flexibility go hand in hand with these scope rings. Repeatability allows you to remove and replace your scope with the confidence that it will return to zero. Flexibility allows you to carry more than one pre-sighted scope for your firearm and also provides ease of removal for your scopes during the rough travel.