Ring Holder with Grooved Shank and Side Lock Tweezers (Comes with Free How to Live Stress Free Ebook) 5-1/2 inches (12-1/2 centimeters) long; Comes with Free How to Live Stress Free Ebook Position the ring shank and setting to solder solitaires quickly and easily Curved jaw has a groove to hold shank securely Flat jaw is serrated in a grid pattern to prevent movement for precision work Professional grade