Playing tennis all year round. '4 hand' is a group of three sorting facilities situated in three different places in Lublin: Aleje Zygmuntowskie 4, ul. Irydiona 3 (3 Irydiona Street), ul. Radziszewskiegi 15 (15 Radziszewskiego Street). Each complex offers roofed tennic courts, enables renting sporting equipment and hiring an instructor.