This is a MEDIAID lumbar support from Nippon Sigmax. I am selling this one, which is new and unused, because I am already using another one. It supports the lower back, improving posture and reducing strain on the lower back. ◾️Size M size (waist 65-85cm) Although it is unused and unopened, I will ship the support without the box to save on shipping costs. The box will be folded and included in the package, so please be aware of this.