The wife and I used these twice first time to test the quality and comfortability. We were really surprised of how well these are made. The straps are very strong and stay off to the side during use. The cuffs themselves are stiff yet flexible, if their not real leather they feel and act like it. The clasps are very strong and can take quite a bit of pulling force. The wife said they are more comfortable than the padded ones. The durability doesn't make her hold back they have enough play in the links to get a little movement. not to much and not to little. Worth every penny!