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85cm Exercise Ball

Need help with my vertical jump?

Im 14 and am 171cm tall, play a fair bit of volleyball and a bit basketball,l but im hopeless at b-ball lol, and at the moment i hav a 70cm (27 and a half inch) vertical jump. At the start of the year it was around 50cm and i wanted a 75 by the end of the year so all is going well. i now want to get it as big as i can so that i will be able to hit better in volleyball, jump higher for rebounds in basketball and to be a … Continue Reading

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