Simplify your exercise routine, and defeat your fitness goals with the Vo3 Stability Bars Maxx. The Vo3 Stability Bars offer a simple and portable, yet multi-purpose and durable piece of strength training equipment, working your arms, chest, back and core muscles. The bars use your own body weight as resistance to build muscle.  The Max and Mini bars can be used by athletes of all levels and ages, in bootcamps, group fitness, sports conditioning classes, martial arts clubs and home gyms anywhere.