General description This professional AlwaysH Circular Glass Cutter is designed for both hobbyists and professional glass cutters. Made from high-quality rubber and aluminum with a copper plating, it is eco-friendly, durable, and strong. The adjustable glass circle cutter features a round button and a suction cup that holds the center while the wheel cuts, ensuring precision and ease of use. Technical specifications Material: Rubber and Aluminum Total Length: Approx. 30cm / 11.8 inches Suction Cup Diameter: Approx. 5.5cm / 2.2 inches Lever Length: Approx. 20cm / 7.9 inches Max Circle Diameter: Approx. 40cm / 15.7 inches Package Weight: Approx. 130g Other information The lever has clear scales for easy reading. Note: Manual measurement may allow for a 1-3cm error; color may vary due to lighting and display differences.