I can understand the other, some surely very positive reviews here on Amazon does not understand. The glass scraper is processed extremely cheap and wobbles at all ends and edges, it is also keeping very uncomfortable in my big hands. The enclosed razor blades are not completely straight, so that only one side at about cockroaches is always cleaned. Worst of all, however, is that the blades retract despite the massive tightening the retaining screw again and again in the scraper, so that the product is ultimately unusable. Extremely annoying and even not worth the little money - I would buy under any circumstances again.
