The Super Snap-On Lens Cap protects your lens / tube / filter against mechanical damage and dust. It has a center pinch snap-on mechanism Which makes it extremely easy to put on and off the lens. Thansk this is it can be used with a lens hood on. The leash is Approximately 20cm (8 in.) Long and it will enable you attach the cap is youe or camera strap.
This High-Quality product is by far better than the Chinese various products available on eBay.