Features:Made of high quality material, durable 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.Perfect for both hobbyists and professional glass cutters.Compasses style, comes with round knob handle that fits your hand. Specification:Material: PlasticModel (Optional)WeightLengthCircle Diameter#1123g15cm/5.9in30cm/11.8in#2162g30cm/11.8in60cm/23.6in#3187g40cm/15.7in80cm/31.5in#4216g50cm/19.7in100cm/39.4inPackage Includes:1 x Glass Compasses CutterNote: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..