Ronlok Set of 30 White Magnetic Washable and Reusable Blackboard Erasers - Ideal for Cleaning Dry Markers on Whiteboards

Washable board eraser: can be cleaned repeatedly, wash with soap and water, air dry Easy to use: contains soft magnetic, can stick to metal boards and surfaces, helps to save space, a practical tool for classroom, home, office Size: 1.97 x 1.97 / 5 x 5 cm, the thickness is 0.79 / 2 cm, suitable for both children and adults Material: foam and felt, and , can you for a long time Compatible with whiteboards, whiteboards, dry wipe sheets, melamine, porcelain and glass surfaces, to effectively clean the whiteboard, the erasers need to a little more firmly