Glass Cutter 6 Wheel Compasses Circular Cutting Cutter with Suction Cup Circle (#4) Features: Made of material, durable and sturdy e. 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. Perfect for both hobbyists and professional glass cutters. Compasses style, comes with round knob handle that fits your hand.  Specification: Material: Plastic, Metal Model (Optional) Weight Length Circle Diameter #1 123g 15cm/5.9in 30cm/11.8in #2 162g 30cm/11.8in 60cm/23.6in #3 187g 40cm/15.7in 80cm/31.5in #4 216g 50cm/19.7in 100cm/39.4in Package Includes: 1 x Glass Compasses Cutter Note: 1. Please allow 1-3mm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. 3. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.