The Adidas Power Tube Level 3 provides the heaviest resistance of the three power tubes. It is a great alternative to weights and features a padded outer sleeve for added comfort and protection.
Adidas Power Tube Level 1
Adidas Resistance Tube - Level 2
Adidas Resistance Tube - Level 3
Adidas Resistance Tube - Level 1
Reebok Studio Power Tube - Level 3
Reebok Studio Power Tube - Level 5