Multi flex lens cover - Butler Creek Multi-Flex Flip-Open Rifle Scope Eyepiece Lens Covers

This lens cover is pretty good. It is actually a replacement for an old one that has been on my scope for about 20 years or so. I guess that's pretty good bang for the buck. The only reason for the 4 and not 5 stars is because it still makes some noise when opened and took some force to close completely. I was always worried that I would knock my scope out of zero when closing (more my issue than anything). I just bought some other Butler Creek Lens covers for a new Nikon Monarch 3, 4x14x42 because the ones that came with it would flop off when trying to flip them open. Useless other than to keep dust out when shipping to the customer. I will replace with the same in the future unless by then there is a laser particle blaster guarding my optics.