This Patent Pending Neoprene cover is designed to fit the HoloSun 507c and also the HoloSun 407c series scopes. This weather resistant cover will protect the scope in all environments and is soft enough to keep from scratching the scope. Sold in a 2-pack only! Covers are made of Soft Santoprene Stretchable Rubber Our Covers will NOT work with Metal Shrouds! ****DOES NOT INCLUDE SCOPE****