Colour coded yellow for easy identification. Suitable for use by males 14 years plus. Durable rubber outer cover with nylon wound construction allows the ball to be used inside or outside on harsh asphalt or concrete. Popular Physical Education and training ball ideal for unsupervised yard use.Ball Size Selection Guide#7 - Male 14+#6 - Male 12-13 / Female 12-13 & upwards#5 - Male / Female 8-12 (Primary School)#3 - Male / Female under 7