Jumparoo JACK HAMMER Extreme Pogo Jumper by Air Kicks<div style="text-align: left;"><strong>[Product Information]</strong><ul><li id="replacementPartsFitmentBullet" class="aok-hidden" data-doesntfitmessage="We're not sure this item fits your " data-fitsmessage="This fits your "><span class="a-list-item"><span id="replacementPartsFitmentBulletInner"><a href="#" class="a-link-normal hsx-rpp-fitment-focus">Enter your model number</a>to make sure this fits.</span></span></li><li><span class="a-list-item"> Uses a totally unique bow-shaped spring to propel riders to heights of up to 4 feet! </span></li><li><span class="a-list-item"> Available it 2 sizes， Small or Large， suitable for Ages 13 &amp; up. </span></li><li><span class="a-list-item"> Small is for users weighing 120 to 154 lbs (54-70 kg). </span></li><li><span class="a-list-item"> Large size is for users weighing 154 to 176 lbs (70-80 kg). </span></li><li><span class="a-list-item"> Composite fiber spring and high-grade aluminum body means JackHammer weighs only 8 pounds! </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/31vQXnN1dGL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31JWLifks9L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41eCebptKPL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31xUFNaqRyL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51ua-JtAzuL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31p7qc3CJUL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41AVmWx5WTL.jpg" noproxy>