These nets can be used as a low barrier to protect from wide shots, a game net for a tennis match, or a net for a soccer tennis match. Nets have rubber non-marking feet to help maintain stance and traction indoor and outdoor. It can be easily moved across a field or gym floor. When not in use, collapse the net and place into the provided carrying bag for easy portability and storage. Available sizes are 12' x 3' and 18' x 2'-9"