Effectively wipe blackboard:These chalkboard eraser are made of premium wool felt,so it will help you clean the blackboard or chalkboard simply and effectively. Easy to use: The handle of the Blackboard Eraser is made of pine,unique design will give you excellent hand feeling, lightweight and proper size, great for kids and adult. 1 pack of Chalkboard Eraser in total, Enough for your daily use and replacement.