The Wilson Sensation DUO 17 GAUGE 20' 1.25 mm TENNIS STRING is a high-quality tennis string designed by the renowned brand Wilson. It comes in a 20-foot length with a 1.25mm diameter, which is ideal for providing a comfortable grip and optimal performance on the tennis court. This product is not a custom bundle or modified item, making it a reliable choice for tennis players looking for a consistent and durable string for their racquet.