304 stainless steel material: Made of 304 stainless steel, it has excellent corrosion resistance and durability, ensuring long-term use without rust or fading Strong load-bearing capacity: Each hardware component has a maximum load-bearing capacity of 40KG, which can support heavier folding doors and ensure that the door body is stable and reliable Suitable for a variety of door frame sizes: Suitable for door frames with a width between 400-406.5mm and 300-406mm, with strong compatibility to meet different installation requirements Widely applicable door thickness range: Suitable for doors with a thickness of 36-40mm, suitable for a variety of door bodies, convenient for installation of various doors Suitable for doors up to 2100mm high: This hardware kit supports a door height of up to 2100mm, meeting the door body requirements of most homes or commercial places, Manufacturer: JVDDI