A concave hexagonal pencil case was made. The diameter of the inscribed circle of the regular hexagon that represents the base of the box is 100mm, and the diameter of the inscribed circle at the middle of the height is 90mm. The height of the box itself is 100mm. A pattern is made on the outside of this box, consisting of a matrix arrangement of square holes. All edges are rounded to protect the user from injury 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.