Clean and wash chalkboards with one easy to use eraser. Synthetic sponge on one side absorbs chalk dust while soft leather side provides final cleaning. Measures 12 long. Pack of 2 erasers. 60 years of commitment and still going strong! Charles Leonard is a second generation family business and we understand that our success is due in large part to the extended nature of that family. We offer over 1 000 products that are used daily in offices schools and homes. When you clip staple pin punch draw glue color and create we are there.