Sissel SitFit plus, a perfect combination of sitting wedge and air filled balance pad. Ergonomically enhanced shape provides better thigh support for longer sitting periods whilst maintaining active sitting. Active and dynamic sitting relieves upper body tension. Enhances an upright posture. Ideal for back, pelvic floor and core muscle exercises. Pre inflated complete with exercise poster and pump. Durable, easy to clean surface, latex and phthalate free. Blue.