The SST™ Scooter features a stylish deck that offers 28% more seating area than a conventional 16" (41 cm) scooter. This deck is also thicker and more reinforced than other scooters, making it tougher and better able to handle larger students. Ergonomic handholds (that actually fit your students' hands!) are positioned within the deck to encourage safe hand position and eliminate protruding handles. The Indoor/Outdoor SST™ Scooter features 3" dia (8 cm) inline skate wheels that glide smoothly over any indoor or outdoor surface, all-metal ball-bearing casters for excellent maneuverability and durability, and precision sealed bearings for performance and reliability. The Indoor SST™ Scooter features upgraded 2-1/2" dia (6 cm) nonmarring soft thermoplastic-rubber wheels with swivel casters, with matching wheel colors on Rainbow® scooters. Also available in vibrant Screamin' Orange® and Screamin' Green® scooters. 20-1/2"L x 16"W (52 cm x 41 cm) deck. Patent pending.