This pack gives young bowlers the best opportunity to develop their craft, adapting their experience & skill with the ball used, each time you progress you use a higher standard of ball. First Ball: Low bounce tennis ball with a cricket seam which is an excellent first ball for children starting the game of cricket. Skills Ball: Weight & bounce as per a leather cricket ball but without the hardness. It features a durable stitched seam & is ideal for developing technique & confidence. Crown Match Ball: A 4 3/4 oz. leather cricket ball that conforms to MCC regulations & is hand made to exacting standards. Superior shape retention & true seams.