Introducing our Adjustable Solid and Hollow Screw Jack Base for Scaffolding System! As a reputable factory, we are proud to bring you this high-quality product that guarantees optimal stability and support for your scaffolding needs. Our screw jack base features adjustable height, allowing you to easily adapt it to various working surfaces. Built with solid and hollow components, it ensures durability and longevity, making it a cost-effective investment. Trust our factory to deliver reliable and efficient solutions for your scaffolding requirements.