he COREFX Power Tubes incorporate resistance to help strengthen, tone and stretch your muscles!

The Power Tubes are made from top-grade 100% natural latex for maximum durability and stretch. Available in five different weight resistance levels that have been strength-tested to determine reliable weight-resistance levels

• White- Light – 10LB
• Red – Medium – 15LB
• Blue – Heavy – 20LB
• Grey – Very Heavy – 30LB
• Black – Ultra Heavy – 50LB