[ Materials]Our trolley is crafted from solid steel, offering exceptional resistance to impact, , and rust. Built to last, it ensures long-term reliability even in demanding environments [Strong Load Capacity]Designed with a solid bearing steel pin shaft, this hoist trolley can support weights up to 500 pounds. Its robust construction prevents breakage, making it ideal for heavy-duty applications in construction, warehouses, and workshops [Smooth & Silent Operation]Equipped with quality bearings, our 4 wheel trolley assembly operates smoothly and quietly. Whether used in a ceiling trolley system or with an electric lift, it provides high stability and low noise for a more comfortable working environment [Universal Compatibility & Easy Installation]The strut channel trolley roller is compatible with 1-5/8inchwide and all 1-5/8inch or taller strut channels, making it versatile and easy to install. The 1/4 inch thick steel plate features three screw holes for quick and secure mounting using M6 bolts, saving you time and effort form your material handling capabilities with this versatile 4-wheel light duty trolley assembly. Designed for seamless integration with 1-5/8inch wide strut channels and compatible with all channels 1-5/8inch or taller, this roller trolley system offers smooth operation and reliable performance. The easy bolt installation process saves you time and effort, while the four-wheel design ensures stable movement and enhanced load distribution. Perfect for workshops, warehouses, and industrial settings, this trolley assembly helps streamline your operations and improve workflow efficiency. The construction and precision engineering an ideal choice for material port applications. Each wheel is crafted to provide consistent rolling action, reducing friction and wear over time. Specification:4Pcs Color: As shown Material: Metal Package Contents: 4Pcs x Stable Roller Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.