Robust and Material: Made of rubber, metal, alloy, and iron-plated copper, this circular glass cutter ensures long-lasting durability and reliability in its construction. Easy to Adjust and Use: With a round knob, this glass cutter allows for easy adjustments and precise cutting. Even beginners can quickly learn to use it with ease. Secure Suction Cup for Stability: Equipped with a suction cup, this glass cutter securely holds the center of the glass while you draw circles, providing stability and precision during cutting. 【Clear Scale Design】The glass cutter is designed with a clear scale, providing quick and easy-to-read measurements. This allows for accurate and efficient glass cutting, saving time and effort. For Professionals and Hobbyists: Whether you are a professional glass cutter or a hobbyist, this multifunctional circular glass cutter is perfect for all your cutting needs. It is suitable for glass cutting and hole punching in a variety of applications.