I use these to discard my testosterone needles. They’re super easy to use and good quality. The containers are sturdy and the lid snaps on tight. These are a good size because they aren’t too big and you can store them away under the sink or in a cabinet. Once it’s full, you snap the lid shut and you can’t open it back up unless you pry it open. I accidentally closed it before it was full once and managed to get it back open. It does its job and purpose by keeping the sharps contained and protected. Also not a bad price considering they take awhile to fill up.