Wonky Walk - This is a floor tile system for physical therapy clinics and sensory integration patients. The wonky walk is squares of foam with differing topography obscured by a spandex cover. The therapist can line up the tiles and create a terrain for the patient to maneuver and develop balance and core strength as well as motor planning. If you buy all three pairs, the wonky walk stacks to be 36"x36"x30" in storage. 200 denier bottom has velcro on ends to attach and keep tiles from slipping during use.