CowboyStudio 58mm Lens Cap Snap-On for Canon Rebel (T4i T3i T3 T2 T2i T1i XT XTi) and Canon EOS (1100D 650D 600D 550D 500D 450D 400D 350D) with Lens Cap Holder
The lens cap Fits any lens with a 58 mm filter thread; manual or auto focus, digital or film. The attachable lanyard makes it easy to keep track of your lens cap. Simply attache this piece to your lens cap.  Then it easily slides onto your wrist when not in use  You can also attach it to your lens so it can still be attached to your camera when not in use.