Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Piece of junk

I bought this thing from a local home improvement store thinking it would be handy to use for hanging items on the wall and providing layout lines for flooring, etc. Wrong! The retractable pins that are supposed to hold it to a wall or ceiling or whatever, retract continuously and it won't stay in place. The laser line is practically invisible so it was of no use even if I had a project where I could just set it on the floor. It does seem to be fairly impact resistant proven by the number of times the pins retracted and it fell off the wall plus throwing it across the room out of frustration didn't seem to hurt it. However, it was a piece of junk before I threw it and it's still a piece of junk. I don't even know where it is anymore and I don't care.