I've had the bumpers for almost a couple months, these came will a strong smell but that was expected as its rubber. They seem really well made and feel like the right weight, I haven't actually weighed them or anything, the best part was the free shipping. No hassles and no reason to complain. There is a small thing make sure you take off the stickers they put in the hole in the middle or it will start to leave marks on your barbell. Otherwise I am completely satisfied with the product and would definitely buy from Vulcan again especially if they keep with the competitive prices they are currently at!