As you can see from these images, the cuffs are barely seen at all in the finished film. I'm incredibly impressed at the amount of work that went into them for so little screen time. They are made of leather and the underside is lined with a softer leather. They each have two sets of snaps to accommodate various sized wrists and they feature resin "jewels" with a painted on symbol. There is absolutely no damage or wear to mine. As usual, the Star Trek costume department paid a fantastic amount of attention to detail.