The product is made of iron material with trapezoidal hinges for easy installation. The spreader bracket is designed to add stability and prevent damage. The tie bar when fixing the side of the ladder allows you to choose the right position for fixing. Suitable for household ladders/photographic folding ladders/herringbone ladders, etc. Durable and long-lasting hinges are suitable for any folding ladders., Manufacturer: Shun Yingtong