Mildenberger - Syllable Pens - The Original Colouring Pencils for Writing in Syllables, Two Tone (Red and Blue), Triangular, Lead Diameter 5 mm Thick, Pack of 12 : KORES Deutschland GmbH: Amazon.de:
Faber-Castell 110910 Jumbo Grip Bi-Colour Pencil for Hyphenation and Correction, Red / Blue, Bicolour red and blue, - : Amazon.de: Stationery & Office Supplies