Integrate balance challenges into all aspects of your life with the Fitterfirst Professional Balance Boards. These boards are great for enhancing sports performance, decreasing the amount of time rehabilitating from injury and improving overall quality of life. Fitterfirst Professional Balance Boards are used worldwide by a variety of types of people: from professional athletes and physical therapists to workout enthusiasts and seniors. See increases in balance, proprioception, coordination and agility, while improving strength in core and stabilizing muscles in the lower body. � Tri-level sphere adjusts quickly to steeper angles to give a greater balance challenge� Made from durable 3/4� birch plywood� Safe, non-slip top surface for any type of footwear or bare feet These boards can hold over 500lb, however if a spotter is required please consider both user and spotter safety.