Inflatable Polyester processed Total length 85cm, diameter 31cm and diameter 21cm Photos 1-3 are for reference using my own items Photos 4-6 are for product description Photo 7 is the new product to be sent Because it is cylindrical, If you use a commercially available pillowcase (commercial products assume cushions made of cotton, etc.), it will not fit as is. Please process it as shown in photos 2 and 3.