Mobius + Ruppert (M+R) Sharpener Replacement Blades - 3 or 10 pack - Made in Germany - finest in the world! (Pack of 10) Mobius + Ruppert Pencil Sharpeners Replacement Blades - MADE IN GERMANY Choose a 3 pack or 10 pack High quality steel - well known German specialist manufacturer - finest available! Fits Double Round 602, Double Wedge 603, and Single Wedge 600 Mobius + Ruppert Sharpeners