內裡以三角形結構區分三個放置區塊，最長邊面以合適的孔洞大小插入長釘體的螺絲、中邊面以長型孔洞放置小體積扁平的電白華司、三角盒型內則放置小巧的電白螺母。外形以不規則五邊形作為結構設計，在內裡與三角形呼應外、剩餘的空間可讓使用者將盒內五金零件自由放置運用，更貼合使用者自身的使用方式。
The inside of the box is divided into three placement blocks by a triangular structure.
On the longest side of the face are inserted screws with appropriate holes size. Small flat washers are placed on the middle face with long-shaped holes. And small nuts are put in the triangular box.The exterior is designed with an irregular pentagon as a structure. The inner part and the triangle take concerted action with each other. The remaining space allows users to place hardware parts freely within the box. To more in line with the users' own way of using it.
