I have this cover for my lenses in use in order even with a patch
Sun visor to cover up and to be able to settle.
The lid is functioning properly and the product really has some advantages:
+ Excellent workmanship
+ Tight fit on all lenses (Nikon, Sigma, Tokina)
+ Lid even has a belt for fixing (not mentioned in the product description)
+ Despite the band's cover "dustproof"
A small minus there yet (hence only 4 stars).
- The handles of the lid are smooth without grooves - because you can slip before.
The remedy for this has already been mentioned:
With a Dremel a few wells / grooves milled and you have the necessary grip.