Chalkboard Cleaner$6.10 $4.88 CleanSport.com PriceYou Save 4.88 Qty: Add To Wishlist More Details Reviews Chalkboard Cleaner More DetailsCleans and brightens glass, slate and composition chalkboards. Reviews | No reviews for this product. Tweet Accept Credit Cards Online For your protection, Clean Sport uses Secure Sockets Layer (SSL) security when information is transfered over the internet. All information is encrypted when stored on a secured server