Ltpgtthera bandamp174 latex exercise band extra extra heavy black x 46mltpgtltpgtwith thera bandamp174 resistive exercise systems measuring progress and achieving goals for fitness or therapy is easier than ever beforeltpgtltpgtthera bandamp174 latex exercise bands are available in 8 color coded levels of resistance please note at present we only stock 5 strengths proper use of these systems for resistive exercise provides both positive and negative f