Includes an eyepeice/objective lock ring spanner wrench, tube retaining ring wrench, and close focus stop ring wrench. Machined from 6065 aluminum. For use on PVS-14s, DTNVS/DTNVG, RNVG, Mod 3s, katanas, aeternus, 1431s. Basically any pvs-14 or anvis style optic/housing.