Features: Enhances your materials handling efficiency with our 4 Wheel Trolley Assembly Rollers, designs for seamlessly integration with 1 5/8" wide and taller strut Channel, ensuring smooth and stable operations. Crafted from stainless steel, this trolley assembly offer sturdy and rustproof, providing long time reliability even in demanding environment. Ideal for professional in construction, warehouse, and workshops, this trolley is for those who require sturdy materials transport solution. Perfectly suited for industrial setting, workshops, and warehouse, this trolley systems streamlines operations and enhances workflow efficiency by facilitating easy and Silents materials movement. With its easy installation process, this roller trolley is addition to any materials handling setups, offering consistent performances and durability. Specifications: Component: Stainless Steel Color: As Picture Show Size: Length 7.63cm/3inch Package Includes: 1pc Wheel Trolley Roller note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you will not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.