Heavy-duty Circular Glass Cutter with Suction Cup 40

The Heavy-duty Circular Glass Cutter with Suction Cup is an average tool for cutting glass. It comes with a knife, has a dimension of 40cm, and has a suction cup to stick to the glass. It can cut glass up to 2.8" to 15.7" in diameter. However, the product has received mixed reviews. Some customers claim it works well, is helpful, and assists them in cutting circles on glass, others complain about the suction cup not attaching well to glass and the product being flimsy and inaccurate. Additionally, some customers even claim this product is terrible, does not work, or only works well on Bullseye glass, so it may not be suitable for cutting other types of glass.