Swampfox blade 1x prism - Swampfox Blade 1x25mm Prism Scope

I tried two of these and I really wanted to like this optic but the glass was too bad on both to use with both eyes open. I saw double no matter what. I own other 1x prisms without this problem. I really liked the design and how the battery compartment is in the mount. The design is sturdy and there are videos showing its durability but the glass was unusable with both eyes open.