Aircast Dorsal Night Splint Sm Med M 5 9.5 W 6 10.5 Digital Scales * Useful in the diagnosis E1 3 * Useful in the diagnosis of head lice and the treatment of fungus infections and injuries to the skin and eyes * Lightweight cordless design make this lamp easy to use and store * One 4W black light flourescent tube * Requires 4 AA batteries (not included) Automatic age based target zone : bpm % * To help you train safely and effectively the training computer determines your heart rate target zone limits automatically according to your age based maximum heart rate (220 minus age) Optimal dorsiflexion adjustment for custom stretch * Maximum comfort for enhanced compliance * Easy to use flexible hinge design and soft pliable softgood * Cloth liner is removable and washable * Optional toe assist strap secures toes within forefoot area * Ideal for Plantar Fasciitis * Fits left or right foot