The Derbystar Classic TT is a classic Derbystar ball and our best-selling model. An excellent training ball, made of durable PU material. The excellent, stable flight characteristics are maintained even at lower temperatures. Please note that the ball is available in size 5. There are three designs for size 5 balls. Design (‘size’) 0 is the white ball without golden areas. Design 1 has 8 x 1 gold surfaces and Design 3 has 4 x 3 gold surfaces. Thanks to the different designs, balls from different teams can be told apart.