Promaster 4295 リアレンズキャップ（キヤノン用）

Finally, a rear lens cap that clicks on firmly without that annoying looseness I've dealt with before. The snug fit gives me peace of mind when swapping lenses in my bag.

The plastic is sturdy and the locking mechanism clicks into place securely, so I don't worry about dust getting to my lens. It's a simple accessory that does exactly what it's supposed to.

Finally a rear cap that doesn't feel flimsy when twisting on and off—the plastic is surprisingly sturdy. Keeps dust off the contacts perfectly when swapping lenses in the field.