It has two ties in the back side, fasten the tie up, the chair pad will be stay steady, and won't slide around in all directions. Precise stitching make the cushion smooth and even, the shape is three-dimensional and good elasticity, suitable for all kinds of person, absorb the upper body pressure,and keep the tail spine in relaxed condition. It can be used as a cushion for offices, dining rooms, kitchens, floors, tatami mats, bay windows and cars. In addition, it is also suitable for outdoor dining and picnics.