Despite its rather bland and boxy-looking exterior, the 7,000-capacity Handball Arena, located right in the centre of the Olympic Park, is one of the Games' greenest initiatives and will host the Paralympic Goalball event. The four outer walls of the square building are covered in largely recycled copper cladding which will change colour as it ages; 88 natural light pipes in the room will illuminate the interior, lessening the need for artificial light; rainwater pipes will also recycle water. Inside, multi-coloured retractable seating giving the place a vibrant feel, while in the centre of the building, a state-of-the-art sprung wood floor covers the competition area. After the games, the £44m Handball Arena will be transformed into a flexible, multi-use sports centre for community use catering for a range of sports including basketball, handball, badminton, boxing, martial arts, netball, table tennis, wheelchair rugby and volleyball. There will also be a health and fitness club with changing facilities and a cafe.