the dry board eraser easily removes most dry erase ink from any dry erase board, while the furry side erases chalk, no liquid cleaners needed; Dual side design is convenient and effective to erase without damaging the writing Size: each whiteboard eraser measures 5 x 3 x 1.2 inches, fits the palm well when using, also erases faster and more effective than traditional whiteboard eraser; Suitable size for comfortable to grip and easy to store Washable and Reusable: simply hand wash in soapy water to remove dry marker lint or chalk dust Wide Application: this dry eraser works well on most painted steel, porcelain, glass and other dry erase surfaces Effortless erasing: Eliminating dry erase and chalk marks on whiteboards, glass, painted metals, mirrors, porcelain and with dual design of the board eraser. Specification: Size: . 5 x 3 x 1.2 inches Color: Grey Material: Chenille Package Contents: 4 x Blackboard Eraser Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.