The Sig Sauer Electro-Optics Alpha 1 scope rings are precisely machined from 6061-T6 aluminum offering a perfect balance of strength and flexibility to securely hold your riflescope without causing damage when properly installed. The matte finish and epoxy powder coating ensure resistance to oxidation gun oils cleaning solutions and harsh outdoor conditions. With a tube diameter of 35mm and a height of 2.21 inches these rings are designed for compatibility with Mil-Spec 1913 Picatinny rails ensuring a reliable and robust mounting solution for your hunting or shooting needs.