The Clip-On Cap Keeper from Sensei keeps your lens caps safe, clean and close at hand, helping to prevent their loss while shooting. The Clip-On Cap Keeper clips to a camera strap or backpack or camera bag strap and provides a spring clamp to hold your lens cap firmly in place. It fits on any unpadded strap, up to 2.25" (5.7 cm) wide. It works with any flat lens cap and easily opens and closes with one hand. As an added convenience, the clip also features an extra hook to keep the cap tethered to the clip, in case your cap comes with a cord. The clip is a lightweight, unobtrusive and very practical way to keep lens caps handy and prevent their loss.