BIRUGEAR 49mm Camera Lens Cap with Strap + Cleaning Cloth for All 49mm SLR / DSLR Cameras Protects your lens or filter with this Camera Plastic Snap On Lens Cap With an strap to reduce the risk of loosing it. Fits 49mm filter size lenses. Cleaning Cloth included. (3in. x 3in.) Compatible with Sony Alpha A3000, NEX-7, NEX-5R, NEX-5N, NEX-5, NEX-F3, NEX-C3, NEX-3 (which use E-mount 18-55mm f/3.5-5.6 Lens)