PROFESSIONAL SPRING KEY TOOL: Use this spring bar pliers to precisely remove and insert the spring bar pin on the watch. For removing watch strap, adjustment strap, spring lever and hands. Forged from the strongest and lightest aluminum alloy. HIGH QUALITY: This watch band pliers made of high quality alloy steel, this tool kit is strong and durable for repeated use. The Watch Spring Plier Tool has a perfectly weighted feel and high quality durability. Reversible stainless steel pin forks are designed for heavy duty use while being easy to touch. EASY TO USE: By turning the screw lock, you can lock in the specific size of the pliers by tightening the screws and you have to fix them. When you start to use the product, please install the pin forks in the right way, otherwise it will heart the pin forks. If you don't know how to install, please refer to the picture. WIDE APPLICATION: Just twist the screw to lock the clamp into the specific size you need for your repair jobs. The tool can be adjusted to any spring bar width up to 30mm (5mm to 30mm). fits between watch case lugs, watch band, bracelet or strap. It fits most watch brands on the market. PERFECT DESIGN: The watch band removal tool has a perfectly weighted feel and high quality durability. Its solid, grained stainless steel gripping surface is designed for heavy use while still being easy to touch. Includes reversible stainless steel pin forks.