The strength of a band is determined by its thickness and is colour coded for easy identification. Generally, lighter colours are easier and darker colours are harder. Depending on what you are using them for will determine what strength band you need.
If you are using your resistance band for strength exercises, a darker band will make the exercise harder than a lighter band. Stretching is similar; a lighter band will need to be pulled much harder to get them same stretch a harder band may provide. This all depends on your strength or flexibility level – a beginner will be better starting with a lighter band and advancing to a darker band.
Resistance tubes are great for performing resistance exercises anywhere you go. The handles make gripping easy and reduce the chance of slipping. Original resistance tubes can be used for any activity and are not restricted by a cover.
If you are using your resistance tube frequently or for in gyms where they may be used multiple times a day, resistance tubes with a safety sleeve is an excellent way to extend the life of the tube. It reduces the chance of small nicks or tears occurring which may result in larger tears or the band snapping.