The Metal Idler Pulley is a perfect addition for your lawnmower deck, specifically designed to match the model 756-0981A, 756-04224, and 956-0981. Its 3/8" bore and 3-1/8" diameter are just right for a smooth and efficient operation of your outdoor mower. This high-quality metal pulley ensures durability, resistance to corrosion, and easy maintenance. Its versatile design allows it to adapt to various deck sizes and types, making it a reliable and long-lasting solution for your lawn care needs. Invest in this Metal Idler Pulley today and experience the difference it makes in your mowing experience.