Safety and Protection: Limits the opening distance to enhance safety, preventing sudden slams or wide openings that could cause accidents or damage. Easy Installation: Comes with screws and fixing accessories for quick setup. Simply attach to the frame and panel to achieve reliable restriction. Pack of Four: Includes 4 restrictors, each measuring 20cm, offering consistent performance and multiple installation options across different locations. Durable Material: Made from high-quality metal and coated steel cable, this restrictor provides strong support and long-lasting performance for everyday use in doors, windows, and lightweight panels., Manufacturer: wellrun