This popular sponge is available in three models. These light sponges are made of soft foam and mounted on a rigid plastic rod. They can also be used for chores. The sponge head is round and has a wavy structure on the side. Sponges are available in various forms. The handle can be molded with a hair dryer. The length of the long bath sponge is 56 cm. Short length is 36 cm. Diameter round sponge is 13 cm.