Molten VOLLEYBALL VM 5000 FLISTATEC FIVB Size 5 BallTop of the range match ball.Patented revolutionary FLISTATEC design and technologyHexagonal outer cover optimises airflow around the ball.Laminated PU leather construction with butyl bladder.Official size and weight match ball .FIVB ApprovedFLISTATEC® /// Flight Stabilising TechnologyScientific analysis of the air current over the surface of a traditional volleyball showed that it negatively influenced the ball’s flight path. Molten’s ground breaking “FLISTATEC” volleyball stabilises the ball’s flight path by controlling air disturbance through the placement of raised hexagon shaped designs on the ball’s surface.The color white is easily recognized in any environment. However, if this streamlined arrangement of the fields is combined with the red-green color pattern, the visual perception results in a more uniform rotary motion of the FLISTATEC® volleyball. This original design represents the flame in the letter "O" of the word Molten, symbolising our passion for the game*Inflation: All balls have the correct pressure printed around the valve. Correct ball inflation is important to maintain a technically superior product.