I won't repeat what all the other negative reviews have mentioned but I can't stress it enough - they don't work at all! If you manage to get one that leaves the screw threaded, the cheap piece of junk will just wrinkle like tin foil and be utterly ineffective at holding anything. If you buy these you're not only wasting your money, you'll have to patch the hole made by ripping those pieces of shit out of the drywall, buy a REAL Molly Bolt, and reposition what you were trying to mount. It is not worth!