The Blue Workhorse is a great all-purpose pop-up sponge made of an open cell material that is very absorbent. It's shaped it like a potters rib to fit comfortably in the palm of your hand. Dyed with a natural pigment, the color will fade with use. It measures 3.75" x 2.63"
Natural sponges have been used by potters for years. However, the...