Our amazingly portable, infinitely configurable Ninja Challenge Course package consists of 10 obstacles which easily and securely attach to carpet bonded foam with strategically placed hook fastener strips. Obstacles are covered with rugged 18 oz. CPSIA compliant vinyl and filled with polyurethane foam sandwiched between crosslink for optimal footing. A 6′ x 21′ x 2″ Carpeted Flexi-Roll® is also offered as a quick and convenient way to set up the course over any flooring that hook fasteners will not adhere to.