The folded bucket is made of 600D jean cloth and PVC coating. Upper and lower rings are PP plastic, which is enviroment friendly, innocuous and non-polluting. Bulk of an empty bucket maybe contracted to 1/6 of the normal height, which provides great convenience for carrying  and storing. AND, the bucket available capacity is 3.5L 6L 9L 11L 13L 15L 20L ect. The above price is for 9L.