There are two kinds of spring tensioners and tape tensioners, which are mainly used to develop the muscles of the chest, back and arms.

Spring tensioners are mostly composed of 4 or 6 springs with handles at both ends. You can increase or decrease the number of springs according to your own strength when exercising. It is economical, convenient to use and does not occupy space. It is an ideal equipment for family fitness.

Spring exerciser

The belt tensioner is made of rubber. There are hand-cranked belts at both ends, and a flat or round belt (commonly known as rubber strip) in the middle. The tension depends on the tightness of the belt. Most of these tensioners are self-made, and waste inner tubes are often used as substitutes.