Butler Creek Blizzard see through flip-open scope covers - see description here - https://www.butlercreek.com/new-products-4/blizzard-scope-cover/P00178.html I used the butler Creek size chart, but the covers are too small for my scope - I need the next size up. I am selling one #4 (38.10mm-40.38mm) and one #7 (45.72mm-48.00mm) for $7 each, or both for $12. I bought these for $9.98 each (plus tax) = $11.18 https://www.cabelas.ca/product/730/butler-creek-blizzard-see-through-scope-covers