These replacement caps are manufactured from high-resistance nylon, an engineering polymer selected for its high durability, lightness, and resistance to direct impacts or outdoor moisture. Regarding compatibility, this technical component has been designed with millimetric precision to adapt exclusively to the oval geometry of the brand's tubes. Therefore, it is compatible only with the INDESmed crutches and canes catalog, ensuring an airtight and precise fit on both crutches aluminum and carbon fiber models for crutches adult, or configurations used as a daily crutches support and walking cane.