With this 12' x 12' heavy duty plastic scooter board you get 2 great products in one! Remove the turtle shell from scooter board for all those prone extension and upper extremity activities. With shell in place, it becomes a ride on toy stressing balance responses and working the lower extremities. Kids will also have a great time using the turtle shells as something to sit on and think, or sit in and rock; a spot to balance on and jump from; or a place to throw and drop bean bags. With more than one, arrange shells as stepping stones for a stroll across the pond or form a turtle train!