A circular pencil case was made. The box has an upper and lower diameter of 90mm, and a height of 100mm. A pattern of a certain number of hollow cylinders was made on the upper edge, and patterns of a corresponding number of rectangular holes with specific positions and mutual distances were made on the perimeter. The edges are rounded so that the user does not get hurt or cut on sharp edges. The model was made in SolidWorks and exported as an STL file. This box is intended to be made on a Bambu Lab P1S 3D printer with a 0.4mm nozzle.