Clear Acrylic Capital and Small Letters Practice Boards are 8" tall x 8" wide. Hey Moms--we just made learning fun. Your child can learn numbers and letters while having fun playing with our clear acrylic erasable boards. Trace the letters and numbers over and over again until your child has mastered writing the alphabet and numbers. You will need to purchase a dry erase marker as this listing does not include a dry erase marker.