So far, the door anchor and the lightest resistance bands have both snapped. When the door anchor snapped, I went flying across the room and landed hard. I was not seriously injured. The lightest resistance band snapped today and the carabiner part of it was rocketed into the ceiling with enough force to break anything remotely fragile. The scariest of all is that there is no indication that a part is going to break... it happens suddenly. I am nervous to continue using the unbroken products and will buy some free weights when I can afford them.