The Sound Wave is a great musical instrument designed for use outdoors under extreme environmental conditions. As per many freestanding play events, the Sound Wave does not require any space for safety as there is no surface intended for standing. The unit is considered portable. This allows you to place the event just about anywhere you would like. Colors are dependent on availability from the manufacturer and are available at the minimum as pictured. Browse AAA State of Play for additional instruments that kids will enjoy using.