Upscale Garden Stool Chair Mat Thick Seat Cushion (ColorE) Size:40*40cm/15.75*15.75 Styles:ColorA,ColorB,ColorC,ColorD,ColorE,ColorF,ColorG,ColorH,ColorI,ColorJ,ColorK,ColorL. Materials:Cotton fabric+Soft filler. Safety strap design, can effectively prevent cushion from sliding , easier and more convenient to use. Using a 36-pin technology, let hips feel more comfortable.