I purchased this and used it only once, but it didn't quite suit me, so I'm selling it. It's still in great condition and I hope it can be useful for someone else. This pad is made of nylon and thick, hard urethane to reduce the strain on your shoulders and neck during squats, allowing you to focus on your training. ■Size Length: Approximately 40cm Diameter: Approximately 8cm Urethane Thickness: Approximately 3cm Weight: Approximately 280g Thank you for looking.