depends wat u need to improve i guess. go on jumpusa and see what u like. personally i think if u can get one of those boards with rubber bands they are good. or those bands that u just wear for a few weeks under ur clothes that giv u a few inches just by walking around in them some1 posted about them a few months ago

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Age:15 Height: 5' 10" or so. Running Vertical Jump: about 33-35 inches
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