The automatic retractable cardboard cutter features a safety design where the blade retracts automatically after use. With a magnet, it can be attached to a refrigerator or workbench for storage, preventing loss. It also has a keyhole for easy portability. It's useful in various situations, such as opening envelopes, paper, delivery bags, and cardboard boxes. Please refer to the image for the size. Comes in a pack of 2 (White)