Features - Brand New Item ! - FInish: Matte Black - Material: Made from Aluminum with Steel mounting screws - Sold as a Pair (Includes 2 rings) - Overall Height: 1.835 inches - Overall Width: 21.5mm - 1 inch internal diameter - Weight: Approx 1.7 ounce per rings - Optic Centerline Height: 26mm (measured from the part of the ring that touch your mountinfg rail to the very center of the ring opening) - Fits 7/8" Picatinny type rails - Heavy Duty design with 4 allen screws on each cap - Made to handle heavy recoil - Will accept scopes objective diameter up to 48mm and 1 inch tube diameter - - The screw bolt also acts as a recoil lug to index across your rail systems cross slots and prevent movement of the scope ring - When used on heavy caliber rifles, we recommend using thread locking compound (not included) on these rings - Manufacture warranty against defects