Handmade round cushion! Please use it for the prevention of bedsores. Size: Outer diameter Large: 16cm x 16cm, 1 piece, for buttocks Medium: 12cm x 12cm, 2 pieces, for heels Small: 10cm x 10cm, 9cm x 9cm, total 2 pieces, for elbows For the prevention of bedsores, please shift or remove the cushion as needed, and do not leave it applied to the same area for extended periods. We are not responsible for any accidents, such as the development of bedsores, that may occur while using this product. Please use it at your own risk. Please use it properly. I made this hoping that your loved ones will not suffer from severe bedsores. I hope it will be helpful...