This would have been a four if the description had been honest. It said "smoke" glass. This means dark, clear glass. This was clear glass with a black, easily scratched coating on the bottom. It works for my purpose, esp considering Wayfair's return costs, but I wouldn't order again. Instructions were useless. For the record, 3/16 drill worked for the wall board inserts. For the medium experienced diy-er, not problem. For a newbie, be prepared for a little headscratching.

Pros: Nice basic floating shelf. Secure.
Cons: NOT smoked glass. Painted black. Inadequate installation instructions.