Yonex Muscle Power 40 Green Dot Tennis Balls (6 Ball Pack) Outdoor Power Rating: 8

Power Rating: 8

ensuring you maintain control throughout extended play sessions

Basic to Intermediate

stability and breathability

Grip circumference: 4

Yonex Muscle Power 40 Green Dot Tennis Balls (6 Ball Pack) Outdoor Power Rating: 8The 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