Made of premium quality foam material and high density felt bottom, non-, the whiteboard eraser performs well on erasing and wiping marks and pen-writing on whiteboards Designed in a perfect size 10.5 x 5.5 x 1.8cm (4.13 x 2.17 x 0.71 inch), the eraser features small, , suitable for children and adults A good assistant with strong absorb-ability, they are not just erasers, but also can be used as magnets on whiteboard or any other magnetic , a handy necessary for classroom, school, home, office meeting To clean the whiteboard easily and effectively, just swipe the eraser with a little pressure to clean your whiteboard Colour:4 color(Red+blue+yellow+green) Material:EVA+ felt cloth Size:10.5x5.5x1.8cm Package Contents: 4* Blue Dry Erase Erasers 4* Red Dry Erase Erasers 4* Green Dry Erase Erasers 4* Yellow Dry Erase Erasers Only the above package content, other products are not included. Note: Light 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.