MULFUNCTIONAL USES: Ceramic scrapers are used in vinyl, decals, stickers, glue residue, films, paints, car adhesives, sealants, silicone, grout or stove top adhesives, glass, tiles, walls, floors, mirrors, metals. SAFETY DESIGN: The clamp knob in the middle of the scraper can be used as a razor holder, which is stable and reliable. The double-layered plastic cover protects you from accidental cuts. The blade can be hidden freely after use to avoid any risk of injury. QUICK CLEANING: Retractable handle allows for quick cleaning of tight, hard-to-reach areas. Including 20 spare blades to suit your needs. REPLACEMENT: Simply slide the middle sliding adjuster to the bottom of the scraper, move the blade sideways to remove and replace. HANDLE: The handle of the oven scraper is ergonomic, comfortable to handle and easy to hold. Number of pieces delivered: 15 (1 yellow-grey scraper + 4 plastic blades + 10 metal blades)