Design Description
Unlike a regular round-tube pen, it can even be called a cuboid, just like Rubik’s Cube. Each of its four sides is different. You can give full play to your imagination to create it, just like playing Rubik’s Cube. Everything is possible in this pen. Unlike a regular round-tube pen, it can even be called a cuboid, just like Rubik’s Cube. Each of its four sides is different. You can give full play to your imagination to create it, just like playing Rubik’s Cube. Everything is possible in this pen.










