Functions: the game spinner can be applied to various math and games in classroom, which also can act as a game tool for drinks, family gathering, camping, picnic, bar party, nightclub and so on Easy to write words on and clean: you can use a wet-erase on these spinners to keep your writing from coming off; Just use a wet paper towel or wet tissue to wipe off writing after use Size: square shape, the size is about 4.5 x 4.5 inch, enough space to divide in fourths, fifths, eighths and tenths by using dry-erase markers, divide accurately with some measurement tools; The surface is smooth and clear after ripping off the film Durable quality: made of clear flexible and durable plastic; Spinner can be spun over and over without breaking Package includes: 5 packs clear plastic spinners with black plastic arrows; Note: please remove protective film from each spinner before use; Film is applied to reduce scratches when shipping