Package include: 6 Pieces A4 paper cutter replacements. Cut a nice sharp edge, and last quite a long time. Safe Design: the replacement cutting blades in the protective case works only when you press on it, The replacement blades were easy to fit and work well. very sharp, long lasting and cut precisely. Durable Material: These paper cutter replacement blades are made of plastic and steel, sturdy and lightweight, solid and non-slip. easy to carry. with special triangle blade design. Easy replacement of the blades,Measurements in inches and centermetres. Easy to use: Quality blade can cut 10-12 paper (80g/m2) every time,How to replace: Replacement cutters for paper trimmer, Just open the plastic guide ruler near the middle and the blade pops out, takes 2 seconds. Widely Usage:Professional blades can cut through photo, greeting cards. picture, card, making invites, gift cards and much more paper products, good helper for office paper trimmer.You can use cutting trimmer for making cards and find the trimmer perfect for cutting straight neat lines. How to change Blade? 1. Put the cutting blade holder in the middle of the ruler. 2. Press both parts of the ruler apart and take out the blade holder. Size: 2.5*2.5 cm Color. Orange Package includes: 6pcs* paper cutter