Captain Creative Super Sponges are made of real cellulose and are one inch thick. These high quality sponges should be rinsed out and washed before your first use and every occasion thereafter. Super Sponges are 1" thick, very sturdy but may be ripped with some good effort and may become a choking hazard with small pieces for children. This product should be used with children who have adult supervision. This product has 26 sponge letters, they are all lower case, they are in different colors and they are all bold.
