Manufacturer Part Number: 84632 Slastix technology incorporates asafety sleeve whichencloses the latex, resistancetubing and protects it from ultraviolet light, body oils, the nicks, and the cuts of daily use. Sleeves also provideinsurance against thestretch limitations of the fitness tubing during resistance training. Nylon handles with padded grips. 50" L. 1 lb. Resistance and Color Table: Extra Light - Purple Light - Yellow Medium - Red Heavy - Blue Extra Heavy - Green ProductPart No.Item No.Slastix Toner Resistance Tubing Extra Light8461884621-ELSlastix Toner Resistance Tubing Light8462084621-LTSlastix Toner Resistance Tubing Medium8462584621-MDSlastix Toner Resistance Tubing Heavy8463084621-HVSlastix Toner Resistance Tubing Extra Heavy8463284621-XHSlastix Toner Resistance Tubing Ultra Heavy8463384621-UH