I recently needed to hang a heavy mirror on my drywall and I was hesitant about anchors since Ive had bad experiences in the past .But then I found this industrial and scientific toggle hanging system and was thoroughly impressed. As a result of my tests I determined that it's easy to install and provides a sturdy hold for heavy items. The only downside is that they can be a bit bulky, but that's a small trade-off for the security it provides..