The Spring Bar Removal Tool makes interchanging Straps much easier! When choosing a Metal Strap; to ensure the most comfortable INFINITY fit, The FOREVA team recommends that this be purchased with the INFINITY Watch. Easily swap your INFINITY to Metal Straps using the Slim Spring Bars included in your metal band purchase. The Foreva Team also recommends this tool for ease of use for mix and matching The Gray SUMMIT Bands. With 47 Unique Customization Options… match any outfit!