Heavy-Duty Alloy Steel Construction: This 4 wheel trolley assembly features a T-type design made from high-strength alloy steel, ensuring durability and impact resistance under heavy loads up to 2200 lbs, making it ideal for demanding industrial hoist applications.; Smooth and Quiet Operation: Equipped with standard deep groove ball bearings, this roller trolley assembly rolls smoothly along strut channels with minimal noise, providing stable and reliable movement during lifting or positioning tasks.; Universal Compatibility: Designed specifically for 1-5/8 inch wide strut channels and taller, this load trolley assembly fits most standard electric hoists and is widely used in construction, maintenance, and warehouse material handling systems.; Precision Welded Bearings: The bearings are securely position-welded to the frame of the strut channel trolley assembly, enhancing structural integrity and preventing misalignment during operation, which ensures long-term performance and safety.; Easy Installation with Correct Mounting Guidance: The bottom hole center distance matches common electric hoist mounting patterns; note that fastening bolts must be installed outside the track to allow the trolley to move freely through the strut channel without obstruction.

What's in the box
2 x Dongles