Sponge Boards and Sponges Sponge Board Art. S 4229, 215 x 135 mm, fine, blue Sponge Board Art. S 4230, 135 x 135 mm, fine, blue Sponge Board Art. S 4231, 215 x 135 mm, normal, orange Sponge Board Art. S 4232, 350 x 70 x 40 mm, triangular Natural Sponge Art. S 1030, diameter 17 cm