在查记货物、修改错题时，笔和刀需经常倒换使用。为简化步骤，将笔帽杆与小刀结合，借助弹簧等部件构成自动收回结构，保证安全性。大多职场人士习惯随身携带一根笔，当其携带本产品时，一根笔的空间实现书写和裁剪两种功能。 Logo：“笔”与“刀”字形结合体现产品设计目的，外加方框象征中国印章，提取产品配色，融合为此logo。

Pen and knife are changed frequently when checking goods and correcting wrong questions. For simplifing the steps, the pen cap holder is combined with the knife, using the spring and other parts to form an automatic retraction structure to ensure the safety. Businessman are used to carrying a pen with them. When they carry this product, the space of a pen can realize two functions: writing and cutting. Logo: The combination of pen" and "knife" reflects the purpose of product design, and the box symbolizes the Chinese seal. The product color is extracted and integrated into this logo."