The silver hammer and cold glue can repair the dent easily. The principle is to make glue stick guides on the tooth and use tools by pulling the tabs and lifting the dent. Features: The cold glue usesdirectly on the hammer, damge-free paint. Great needs for hammer slide or dent extractor. (Not including) Small mini dent needs dent lifter or pulling bridge. Use different size glue guides for different dent. Use of cold glue on the glue and stick guides on the dent core. Specifications: Material: Iron-plated chrome + Cold glue Hammer Length: 465mm / 18.3in Cold Glue Size: 90 * 55mm / 3.54 * 2.17in, 60 * 60mm / 2.36 * 2.36in, 110 * 25mm / 4.33 * 0.98in Package Weight: 2100g / 74.08ounces Package Size: 340 * 150 * 90mm / 13.39 * 5.91 * 3.54in Packing List: 1 * Silver Hammer 3 * Cold Glues