These blades are only compatible with the Merkur Beard and Moustache Razor, they are not compatible with any double edged safety razors. \nUse for shaving up close to beard and moustache lines, if you want sharp beard lines you need the Merkur Beard and Moustache Razor and blades.\nFrom the makers Merkur Stahlwaren in Solingen, Germany, who have for many years manufactured the finest razors and grooming accessories, using only the highest quality materials and finest craftmanship.
