Mechanics: Non Sealed Needle Bearing Or Bushing. The CMI 4" Dual Pulley with Stainless Steel Bearing is designed for optimal performance in various applications, ensuring durability and efficiency. This pulley is perfect for lifting and rigging tasks, offering a robust solution for both professional and recreational use. Constructed with high-quality stainless steel, it resists corrosion and wear, making it ideal for outdoor environments and heavy-duty operations. Featuring a dual pulley system, this product allows for smooth and efficient operation, reducing friction and enhancing the overall lifting experience. Easy to install and versatile, the CMI 4" Dual Pulley is a must-have for anyone looking to improve their rigging setup. Whether you are an experienced rigger or a DIY enthusiast, this pulley will provide the reliable performance you need. Features: * Material: High-quality stainless steel for corrosion resistance * Design: Dual pulley system for smooth operation and reduced friction * Application: Ideal for lifting and rigging tasks in various environmentstable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }