![Derby Professional Single Edge Razor Blade 100-Pieces, 0.04203 kg : Amazon.co.uk: Health & Personal Care Derby Professional Single Edge Razor Blade 100-Pieces, 0.04203 kg : Amazon.co.uk: Health & Personal Care](https://m.media-amazon.com/images/I/814KiFK8XuL._AC_UF1000,1000_QL80_.jpg)
Derby Professional Single Edge Razor Blade 100-Pieces, 0.04203 kg : Amazon.co.uk: Health & Personal Care
![Today I found out that with a single-edge razor, where only one side of the blade is sharp, I can simply install the blade in reverse. Consequently, even without a travel case, Today I found out that with a single-edge razor, where only one side of the blade is sharp, I can simply install the blade in reverse. Consequently, even without a travel case,](https://i.redd.it/50xh5pzg96kb1.jpg)
Today I found out that with a single-edge razor, where only one side of the blade is sharp, I can simply install the blade in reverse. Consequently, even without a travel case,
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