The Squiggle Re-Writable Rear Lens Cap from Sensei is fitted for the rear of most Canon lenses. The Squiggle Cap features an erasable whiteboard to label lenses with a wet-erase marker, allowing for quick lens identification in a crowded bag or dimly-lit environment. To change the label, you can easily erase the whiteboard with a damp cloth or pre-moistened tissue, then re-label it. The ABS plastic cap protects your Canon lens from dust, moisture, scratches, and fingerprints.

The Squiggle Cap will not fit Canon's 18-55mm and 55-250mm lenses.