The Optimum Grand Slam Winners 2016 Midi rugby ball is constructed with a top quality Korean rubber outer, including a long lasting Optimum 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. - Top grade Korean natural rubber outer - Balanced weight for superior flight and accuracy - Hand Stitched - Grand Slam winners 2016 Design This is a MIDI (size 2) size ball.