The New BOSU Pro Balance Trainer is a versatile piece of equipment for fitness professionals, ideal for static and dynamic balance training. The BOSU can also be used to integrate balance challenges into cardiovascular, endurance, core and flexibility training. BOSU is an acronym for "both sides up." The BOSU Balance Trainer can be used with the platform side either up or down to challenge balance with different body positions. Includes BOSU (blue), footpump, Integrated Balance Training Book and DVD. 4” x 25” x 25” Weight: 19.0 lbs.