Tennis Ball Erasers make a great addition to your fun eraser collection. This 5 pack of tennis ball erasers is sure to put a smile on your face, even when erasing the major uh-ohs. Bright tennis ball yellow, these erasers are non-abrasive, smudge resistant, and work great for erasing pencil markings. Each eraser has dimensions of 1"W x 1"H x .25"D.