Quality material: the paper trimmer blades refill is made of quality ABS plastic, which is safe and durable, and not easy to deform, and can serve a long time application. Safe design: the replacement blade is hidden under the blade holder, which prevents us from hurting ourselves when using the blade; Meanwhile, the handshaking place adopts an anti-skid design, so you can rest assured to use; Compatible with 853A4 plastic base paper cutter, A3 can cut 42 cm plastic paper cutter, 856A4 white plastic base paper cutter Easy to use: it is convenient to change the cutting blade with 1 hand, just press gently to reach the desired state; This product may be similar to the appearance of your cutting, but please allow little size error and read the size details to confirm the size before purchasing Wide use: the paper trimmer blades can be applied to different papers such as printing paper, photo paper and coated paper, and are very convenient for manual projects; You can make different shapes of papers by using them according to your preference Package content: you will get 10 paper cutter blades, enough for different occasions such as classroom, library, home, etc., to reduce the amount of time you spend on cutting paper