[Versatile 4pc Set]Includes four pulleys for multiple projects, suitable for DIY enthusiasts and mechanics.
[U Groove Pulley]Crafted for smooth operation with U shape design to minimize friction and enhance tracking.
[Premium Material]Constructed from metal and plastic, ensuring long-lasting performance in heavy-duty applications.
[Smooth Operation]Internal lubrication grease guarantees quiet performance, ideal for noise-sensitive environments.
[Wide Application]Perfect for tracking and driving systems in residential and industrial doors and mechanical equipment.

Features:
Made of material, these pulleys are durable, sturdy and wearable.
Internal lubrication grease, smooth operation, good effect.
U-shape groove design, smooth surface reduces friction.
There are total 4 pieces of pulleys in one set that you many use for many projects.
Widely used in doors and to track and drive mechanical equipment.
Specifications:
Model: 0840UU
Type: U-groove
Material: Metal, plastic
Color: Black
Inner Diameter: 8mm/0.3in
Outer Diameter: 39.5mm/1.6in
Thickness: 20.1mm/0.8in
Quantity: 4pc
Weight: 109g(approx.)
Package Includes:
4 x Pulleys
4 x Pulleys