The Hama Lensdop Non-Looser never loses sight of you. How often have you lost your lens cap? Maybe he's in your pocket or you've left him somewhere. But if you really lose it, your lens will remain unprotected, with all its consequences. The Hama Lensdop Non-Looser is a simple solution to this problem. You slide the rubber band over your lens and attach the cap to your lens cap. Simple, but effective.Note: no lens cap is supplied with this.