Thera-Band® natural latex training tubes are available in seven progressive resistance levels. Different material thicknesses enable different levels of resistance to be achieved. These are characterized by the Thera-Band® ; colors protected under the brand name, from beige to silver. The color-coding system enhances training motivation and gives positive feedback to both trainer and user. Product features / benefits:Perfect for upper and lower body training, workouts, rehabilitation and fitness.Easy-to-use alternative to free weightsPortable, comfortable product that can be used in the clinic, at home or on the move.Available in four color-coded resistance levels: medium/red, strong/green, extra strong/blue, special strong/black Recommended resistance levels:Red Untrained women, teenagersGreen: Trained women, teenagers, untrained menBlue: Well-trained women, menBlack: Well-trained men, very well-trained women Material:100% natural latex Product details:Different colors and resistance levels6 different pullsWith flexible loop handlesLength: 1.4 m Care instructions:water, disinfectant spray