feature:    -The lever uses a clear and understandable scale, which is easy to read.    Adjustable cutting diameter from -6 cm to 40 cm to meet your different cutting sizes.    -With a powerful suction cup, the center is located at the position where the cutter head is rounded.    -This compass glass cutter is designed to cut glass into precise circles.         specification:    Name: glass compass knife    Material: Hard alloy + stainless steel    Suitable thickness of glass: 2mm-10mm    Cutting diameter range: 6-40cm         Be applicable:    1.The opening of the kitchen range hood    2.Precise hole drawing and circle processing of glass    3.Circular openings in wooden boards         Package Included:    1 x glass round knife         notes:    1. Manual measurement, please allow 1 ~ 3mm error, thank you.    2. Due to differences between different monitors, pictures may not reflect the actual colors of the project. We guarantee the same style as shown in the picture.