• The official underwater rugby ball
• Black/yellow
• TV motif
• Anti-slip
• To be filled with salt water

Underwater rugby is a team sport which is unique in that the ball and players can move in three dimensions. UWR is the international standard abbreviation.

The game is played with a ball filled with salt water (which is about the size of a handball and looks like a classic football). It has a higher density than fresh water and sinks with a speed of 1 to 1.25 m/s. It is always played underwater and the ball must not rise above the water’s surface.

If the water has a depth of between 3.5 m and 5.0 m the goals are positioned on the bottom of the pool. They are heavy metal hoops with a diameter of 39-40 cm.

A game lasts 2x 15 minutes. Each team consists of 6 players and 6 substitutes as well as 3 reserve players. As circulation is greatly affected by the fast game and the players do not breath underwater, the players swap regularly. When players swap, there is a rule that a substitute can only enter the water once the other has completely left it.

Under water rugby requires high stamina and the ability to hold your breath. A feel for tactics is also necessary because correct positioning is crucial for good passing. When the ball is passed, it is pushed away similar to a shot put. Depending on power and speed, the ball can be accurately passed over several metres. On the whole the game is characterised by different demands of the players: not only strength is required, speed and mobility also play a part under water. In order to orientate oneself in nearby "free space" of the three dimensions, a good overview is also essential because an attack can come from above or below in underwater rugby.