Product DescriptionSize: 65*11.5*2.5cmColor: black and redMaterial: PP+chrome-plated spring steel wirePackage content: 1* tensioner1.DUAL-FUNCTIONAL RESISTANCE BANDS: The spring exerciser includes two engineering plastic handles, in line with ergonomic design. The combination of grip and stretcher makes the exercise more comprehensive.2.DETACHABLE SPRING: There are five springs in the chest expander, which can be increased or decreased according to our own training needs to find the most suitable training intensity.3.CAREFUL CRAFTSMANSHIP: The spring is made of carbon steel wire and is delicately treated with chrome. The connection point makes them thicker so that they are more stable and durable when we use them.4.PORTABLE: The handle is foldable, and the spring exerciser is about 11.5 cm long after folding. Therefore, the product is intimately designed, small in size, portable, ready to be exercised.5. Suitable for all types of people: Perfect for adult men and women of all fitness levels; allows almost everyone to build muscle, melt fat and get a perfect figure.