The 60mm Hawke Sports Optics Riflescope Sunshade is designed to shield the objective lens from glare and lens flare which can affect your ability to clearly see and identify game and may alert your quarry to your presence, while helping to limit internal reflections within the scope's optics. The shade is 4" in length and features threading on both the front and back of the tube, allowing multiple shades to be stacked. This sunshade will fit all 2015 and later 60mm objective models of Hawke Optics collection scopes, but is not compatible with the Frontier 30 range, XB/XB1 crossbow scopes, or 24mm objectives.