Introducing the Qinkai Roller Trolley Wheel Trolley- the perfect solution for your industrial needs. Our product is designed to work with 1-5/8" wide and all 1-5/8" strut channels, making it versatile and easy to install. Our trolley wheels are durable and can withstand heavy loads, ensuring efficiency and long-lasting use. As a factory, we utilize high-quality materials and cutting-edge technology to manufacture products that meet industry standards. With the Qinkai Roller Trolley Wheel Trolley, you can trust that you are getting a reliable product that will make your work easier and more efficient.