Easy to use for first-timers. Stretched the sucker around and popped it on without any issues regardless of the size. I felt stiffer when using this with wifey, but here's the thing. I felt a mild throbbing "tug" when I wrapped it around the boys. Pain didn't subside when we were bangin'. Mind you, the cobra's been devenomized, so it could have something to do with that. At the base, it definitely felt better. Material is soft and durable, softer than those bracelets people wear to support their charities. She actually enjoyed it more when we tried it for the first time. She kept squealing how hard it was. Happy wife, happy life!