Bowflex Revolution Upgrade， 80 lb<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>80-pound weight upgrade kit designed for Bowflex Revolution home gym</li><li>Boosts resistance from 220 to 300 pounds (upper body) or 600 pounds (lower body)</li><li>Cutting-edge， non-metal-plate technology looks just like free weight plates</li><li>Works independent of gravity to provide resistance without adding bulk or weight</li><li>Easy to install: twists onto the Bowflex Revolution in a snap</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41iqpnPjWFL.jpg" noproxy>