Prime-Line Adjustable Spring Tension Screen Door Roller a versatile and durable solution for your screen door needs. This roller features an adjustable wheel with a center groove and a heat-treated, high tension steel spring, ensuring long-lasting performance and smooth operation. Available in several variations, it includes options with nylon rollers, steel ball bearing rollers, and nylon ball bearing rollers, all designed with a consistent roller width of 1/4" and a diameter of 1". Each package contains two rollers, making it convenient to replace or upgrade your screen door components with ease. Whether you need reliable nylon rollers or the enhanced durability of steel ball bearings, this product delivers quality and functionality for a variety of screen door applications. Model Number: 1109