This is a set of two X1 knee supporters. One is also sold on a separate page, but there are several available, so the quantity can be changed according to your needs. Black L-size knee supporters provide comfortable support. - Model Name: X1 Knee Supporter - Size: L - Color: Black - Application: Knee Supporter They are new and unused, but they have been stored personally, so please refrain from purchasing if you are nervous or seeking perfection. Please understand this before purchasing. If you have any concerns, please consult in the comments before purchasing.