أغطية عدسة شيئية مطاطية من أوبتيكرون للقطر الخارجي 52-53 مم

The rubber is thick enough that I don’t worry about bumps in my pack, and they fit snugly on my 52mm objectives without slipping off.

Took these out to the field for a weekend birding trip, and the rubber feels tough enough to handle being tossed in a pack. They stay put when you're hiking through brush, which is exactly what I needed.

The rubber feels sturdy enough to shrug off a knock against a car door, and the fit on my 53mm barrels is tight without being a struggle to get on and off. I've tossed them in a backpack for a week of hiking and the lenses stayed completely dry and dust-free.