Vallhall Arena is a multi-purpose indoor arena, located in Valle-Hovin, Oslo, Norway. The stadium has a capacity of 5,500 people during matches. The Tippeligaen club Vålerenga uses the arena for training and friendly matches in the winter off-season. The arena is made of artificial grass turf with a floor space of about 9000 square metres. It is mostly used for football matches, but it is also known for hosting events such as fairs and concerts.