Metals are excellent and thick, clamp is excellent, very thick and strong but plastic and screws are flimsy and cheap. a problem with the bar where it attaches to the clip, after 3 months of use i contacted the seller and they refused to help saying they had nothing to do with the problems and referred me back to amazon when they cleared the return knew amazon policy higher than i contacted mount it manufacturer they answered me once i asked for a picture. I sent a picture and never got a reply from them again. I sent another picture and nothing else. I then sent a new email with a new query and never received a reply either very unsuccessfully and hence due to the lack of seller and manufacturer support I would not recommend this product.