Features Durable Construction: Made from high-quality materials, this glass cutting tool ensures long-lasting performance and reliability for all your cutting needs Effortless Circle Cutting: The adjustable design features a round knob and suction cup to securely hold the center, allowing smooth and precise cutting of perfect circles User-Friendly Scale: Equipped with clear-cut scales on the lever, this tool makes it easy to read measurements, ensuring accuracy in every project Comfortable Grip Design: The compass-style handle is ergonomically designed to fit comfortably in your hand, providing enhanced control during use Versatile Applications: Ideal for various tasks, this cutter is perfect for creating glass circles, lampblack machine openings, air conditioning chimney openings, and more Features: 1、Made of material, and sturdy to use. 2、Adjustable glass circle cutter, round knob, suction cup holds center while the cutter wheel scribes circles. 3、The lever has clear-cut scales which make easy to read. 4、Compasses style, comes with round knob handle that fits your hand. 5、Suitable for glass drawing circle, lampblack machine, air conditioning chimney opening, etc. Specification: Features: Made of material, and sturdy to use. Adjustable glass circle cutter, round knob, suction cup holds center while the cutter wheel scribes circles. The lever has clear-cut scales which make easy to read. Compasses style, comes with round knob handle that fits your hand. Suitable for glass drawing circle, lampblack machine, air conditioning chimney opening, etc. Specification: Cutting thickn: 3~12mm Diameter: 20cm/7.9in, 40cm/15.7in, 60cm/23.6in, 80cm/31.5in (Optional) Package List: 1 x Glass Cutter Package List