Sufficient : you will 2 pairs of spool typewriter ribbons,the is enough to your daily use and replacement,solve the of frequent purchaseModel compatibility: the typewriter spool ribbon is suitable for typewriters,you can the right ribbon according to your typewriter model : spool typewriter ribbon has ink,which will bring you a good use experience; And it will not be a ribbon that has been left for many years,so you 't have to worry about using itRed and black color: different from other single color ,the provided typewriter ribbon has red and black inks,different colors are easy to distinguish,which is more convenient for you to use in your workEasy to use: these typewriter spool ribbons are suitable for typewriters,you can use to replace the old or broken ones,easy to replace and use,very suitable for officeType: Typewriter RibbonMaterial:ABS+Nyloncolour:Black + RedPackage Contents:2 x Typewriter ribbonsOnly the above package content,other are not included.Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.