Texture and material construction: The tethers are made of nylon. The clips are made of metal and have a quick clip function. The adjusters are made of a hard plastic, like you would see on back packs. The length of the tethers ranges from 3" to 48". The width of the tether is 1". The rings on the end are round and are 1" across. The quick clips are 2" long and 1/2" wide at the widest point. Review Details: These are very durable tethers. There is a bit of a chemical smell when you first take them out of the package. This went away after airing them out for a few days. The tethers are good for beginners as well as experienced players. You could engage in some rough play and as long as you did a good job hooking these to something sturdy, your partner is not going anywhere. The main issue I had with these is the small quick clips. To use them to wrap around something, like a chair leg, you need to fold the tether in half and put it between the quick clip to secure it. I would have liked an easier way to get it secured. The tethers can be used alone or with another restraint system. They can also be used in conjunction with your sex swing. In addition, you can use these to assist with positioning. They work great to hold up tired legs. If it was not for the undersized clips, these would have gotten five stars.