Thank you for viewing. One unused and one used a few times. (The left side of the third photo has been used a few times, the right side is unused (taken out of the box for the photo)) These supporters use 140mT magnets to promote blood circulation and support muscle improvement. - Brand: MEDIHEAL MAG - Size: L (knee circumference 35-42cm) - Quantity: Set of 2 - Material: Nylon, polyurethane, polyester, ferrite permanent magnet - Features: Blood circulation promotion by 140mm x 4 magnets (x 2 pieces)