This Green Sonic Scooter offers a revolutionary new design that opens a whole new view of opportunity for movement and cooperative play. The unique, tongue-and-groove design allows students to train as many scooters together as they like, from two on up! The Easy-Roll, non-marring casters turn any direction so students can go forward, backwards, sideways and even pivot as one rider becomes the axis for the whole team. Maneuvering around an obstacle course becomes a unique and challenging task that is fun, and, at the same time, requires cooperation and teamwork. Finger-safe handles are built right into the board so kids won t get caught between boards...or get run over by their own casters!. Sold as Single Unit. Ideal for physical education classes. Includes finger-safe handles. Link scooters together or use individually. Excellent for early childhood.