DISC INFORMATION:Brand: DiscraftMold: UltraStarMaterial: TPUType: Ultimate FrisbeeStamp Art: Stock MATERIAL:No material used in the manufacture of flying discs works better than TPU (thermoplastic polyurethanes), and specifically a proprietary blend of TPU from the BASF Elastollan series of TPUs, distributed by Alliance Polymers & Services (APS). Company sources note that this particular type of thermoplastic elastomer ensures the Ultimate disc fly, handle and perform just right. Features and benefits of the discs made with TPUs include: they remain flexible in all types of weather, are extra tough and are extremely ‘grippy,’ even in wet weather. DESCRIPTION:Ultra-Star is the most popular disc we sell. With its contoured grip and aerodynamic engineering, the Discraft Ultra-Star is easier to throw and goes farther than other Ultimate Frisbee disc brands. This is the official Ultimate disc of USA Ultimate. The 175g Ultra-Star (10.75" diameter) is the official disc of USA Ultimate and the choice of Ultimate teams worldwide for casual, league, and tournament play. Since its introduction in 1981, the Discraft 175 has set the standards of quality, consistency, and performance necessary for the demanding needs of the sport of Ultimate Frisbee. Longer distance: The Discraft Ultra-Star flies further than any other Ultimate Frisbee disc. Superior stability: The Discraft Ultra-Star maintains your release angle longer than any other disc designed for both throwing and catching. Advanced Aerodynamics: With its contoured grip and aerodynamic engineering, the Discraft Ultra-Star is easier to throw at all levels of play from a throw on the beach to a World Championship Ultimate Frisbee match. DETAILED INFORMATION:Max Weight: 200.0grDiameter: 27.3cmHeight: 3.2cmRim Depth: 2.0cmRim Thickness: 0.7cmInside Rim Diameter: 25.8cmRim Depth / Diameter Ratio: 7.3%Rim Configuration: 88.25Flexibility: 7.14kgMax Weight Vint: 182.9gr PDGA APPROVAL DATE:01/01/1981