Martha Stewart Crafts Specialty Sponge Set, 32227 (2-Piece) Specialty sponges from Martha Stewart crafts This two-pack of Martha Stewart crafts specialty sponges are made of foam and feature a broad flat edge useful for quickly applying basecoats Contoured and easy-to-hold Small sponge measures 1.75 x 2.5 inches Large sponge measures 2.5 x 3 inches