I currently have a Roll-N-Lock cover on my pick-up. In two years it has taken more abuse than what I ever expected. I've dropped things on it. Its been hit with a bat. Hauled lumber and other things on it. Fork-Lift hit it. It has had a ROUGH LIFE. It still works EXACTLY like it is supposed too. Someone also tried to break into it. Hence, my aim was a little off with the bat. WELL WORTH the money I spent. It has out-lived my expectations. Excellent product.