Specifications: 1) Colors: black, red, green, blue, yellow 2) Master: A4 / B4 / A3 for Riso, Ricoh, Duplo, Gestetner 3) Fax ribbon and TTR for Panasonic, Brother, Philips, Sanyo, Canon and Sharp 4) Excellent quality 5) Fast drying and high density 6) Resists high temperature