The Gilbert G-TR training ball features Gilbert's new patented TRI grip technology, which is a triangular grip pattern on the surface of the ball, this represents a major step forward in grip technology on training balls. Tests have shown that this new more defined pattern is hard wearing and allows the player more surface area contact with the ball when handling. This training ball is made from 3 ply polycotton and cotton laminate and is hand stitched. The technical fabrics and waterproof laminations are combined to enhance the life and performance of the ball. The G-TR training ball is available in sizes 3, 4 and 5 and is suitable for Club, School, Junior and Mini rugby.