Most companies offer one accessory (e.g. dumbbells) in several types. However, only a few give extended warranties for stronger versions. Everything depends on the design and the material from which they have been produced. Although the common name "polyurethane" refers both to accessories made of TPU (thermoplastic polyurethane elastomer) and CPU (casting polyurethane elastomer), the difference, however, in price and strength is huge.
Gipara's polyurethane accessories are made only of a stronger CPU and that is why we give a 5-year warranty on those products.
In order to calculate the actual cost of the product, it is easiest to apply the formula:
The average shelf life of rubberized accessories or accessories made of cheaper materials in a fitness club sums up to between one or two years. Taking into consideration the above formula and the fact that well-made accessories made of CPU will maintain their properties for a period of at least 5 years, we get a result in which the monthly cost of using an accessory made of better materials is several times lower than the cheaper one.