Reebok Power Tube Level 1 Is Used For A Variety Of Fitness Activities, And Training Types Such As Cardio, Strength, Toning And Rehabilitation, The Highly Durable Resistance Tubes Help Improve Strength And Flexibility. Supplied At A Length Of 156Cm, The Reebok Power Tubes Feature An Outer Sleeve Which Helps Provide Additional Protection. It'S Small And Lightweight, Making It Easily Portable And Perfect For Exercise In Any Environment. Outer Sleeve Provides Protection From Injury Should The Power Tube Break During Use.