Optics Bubble Level Set

They work well for mounting a scope. They also work well while shooting/competing to checking for cant. Problem: the screw or nut on the end fell out while I was out of town. I did recover it, but it was lost while unpacking when I got home. (It isn't very big) I called and tried to order another screw. But what arrived was another whole set. So there is no complaint about service after the sale!

The level works perfectly on my precision rifle.

They're pretty good but I think it would be a lot better if the scope level was magnetic.