The Optimum Street training ball is constructed with a top quality Korean rubber outer, including a long lasting tyre grip finish, for superior grip and tackiness in all weather conditions. Hand stitched and balanced for superior flight and accuracy, an ideal ball for club, school and junior rugby. Durable 2ply heavyweight training ball (410g) Top grade Korean natural rubber outer. Tyre grip surface. Balanced weight for superior flight and accuracy. Hand Stitched Street Design.