Yonex Muscle Power 40 Green Dot Tennis Balls (6 Ball Pack) Outdoor Drift Defense technology for durability

Drift Defense technology for durability on toe area

The primary technology is a Flex Control System which enables the racquet to bend optimally at impact

Power Rating: 8

plus the MIZUNO ENERZY midsole

Length: 16-5/8 inches

Yonex Muscle Power 40 Green Dot Tennis Balls (6 Ball Pack) Outdoor Drift Defense technology for durabilityThe Yonex Muscle Power 40 Green Dot Tennis Balls (pack of 6 balls) are stage 1 training balls designed to help young players develop fundamental skills with confidence. These balls travel approximately 25 % slower than standard ITF approved tennis balls, making rallies easier to sustain and giving learners more time to react and position themselves on court. Part of Yonexs progressive junior training system, Muscle Power 40 balls are ideal for school