The unit is very sturdy and heavy enough. No instructions were included so we don't know how to use it. I wish we had prior experience, but we don't. At this point, the item is in storage in our attic until we have time to google instructions.
I ordered four of these and they come with no instructions. Instead this company wants you to watch a video on their website and the only way I knew this was to contact them. When they were delivered they required a key to open them. I had no key so I was instructed by their customer service to reach into the small hole on the side so I could get a key. I have large hands and my wife had a hard time getting her hand in enough to pull the plastic package out that contains the key and the metal rods to mount the bait. Once we got them open I had to watch another video to see how to mount the rods to use the bait they sent me. I've only had them outside for a week so I don't know how well they are working.