NEOPlex"Marker Board Cleaner Combo Pack" - Includes Two NEOPlex Magic Eraser Sponges and One Bottle of NEOPlex Acrylic Board Cleaner Includes two erasers and a 10oz. bottle of acrylic board cleaner Removes stubborn shadows from chalkboards and other marker boards Eraser approximate dimensions: 4 x 2.4 x 1 Erasers are easy to use - NO chemicals Erasers rinse with water to clean