Quality Material Superior Performance: The hoist crane pulley is made of excellent 45# steel material with high strength, good stability, low creep and wear resistance. chemical wear and stability, sturdy and durable for outdoor long term use. Easy to Use: Rotating rollers can be used with ropes or cords indoors or outdoors outside for flexible sliding. The smooth running roller ensures good rope movement. The upper part is fixed and the rope is easy to move. Handle. Practical Design: Double bearings The rollers slide stably and smoothly, making it easier to move the gate at any time. indoors or outdoors outside for flexible sliding. With compact structure, easy to carry. Use. Wide Applications: suitable for sliding doors, rail doors, etc. various types of angle iron, angle iron rails, etc. Can be used for home fitness equipment, fitness accessories and exercise equipment pulleys. Or pulleys for ropes, ropes and ropes indoors and outdoors. Laundry, rollers, etc. Scope of delivery: you