Made of polyester felt, it can serve you for a long time and is comfortable to be held. Great cleaning power and works well to remove chalk and markers handwriting. Very useful and convenient for you to use at home, office and school. It does a good job both for chalkboard, blackboard and whiteboard. Features rectangle shape design, and the size is about 12.5x5.7x3cm, perfect size for your hand to hold. This is a high-grade wooden blackboard brush, not easy to molt, lightweight and convenient. Suitable for teachers to teach parents parent-child games outdoor advertising and a series of blackboard cleaning. This size is good for cleaning up blackboard quickly. It has good cleaning power and works well to remove chalk handwriting. Perfect for both kids or adults, also suitable for school, office, home using, etc.   Excellent felt erasers. Layer peel away felt whiteboard eraser comes with an easy to grip durable plastic handle. Layer eraser Convenient peel away felt whiteboard eraser features 12 layers of felt pads. Just peel away the layers as the surface becomes soiled. Features easily peel away 12 layers of felt pads for added convenience Remove used pads as required for a fresh erasing surface Features durable plastic handle with easy grip for user convenience   Felt Erasers are ideal for erasing, whiteboard, or porcelain surfaces. Their soft pile surfaces trap marker residue and dust. Convenient eraser features twelve peel-away layers of felt pads. Remove used pads as needed for a fresh erasing surface. Durable easy-grip plastic handle provides better maneuverability.   Whiteboard eraser features a peel-away design that lets you conveniently remove used pads. Peel-away felt layers offer multiple clean surfaces to increase your cleaning efficiency. Easy-grip handle is comfortable to use. Works really well on whiteboard. You can peel off old, dirty layers, and basically have a new eraser every few months. Lasts a LONG time. Works on glassboard, but definitely not as well as on the whiteboard. Can see barely visible smudges and smears.