Pixel BF-1A Lens Rear Plus Camera Body Cap Combo for Nikon D90 D7000 D5000 D3100 D3000 D700 D200 D3 D2 D80 Nikkor Lenses as LF-1 Rear lens cover: to cover the back end of the lens after it has been removed from the camera Camera body cap: to cover the camera body when there is no lens attachment Lens cap and fuselage cover prevent the dust and damage, facilitate storage