A small box originally designed to store markers, complete with a snug-fitting lid and sliding hinge.

At its designed size, the internal space is 145 mm tall, 165 mm long, and 31 mm wide.

When putting it together, I recommend first gluing a ring to the end of each arm, then, once dry, inserting both arms into the box's slots and putting the lid in place on the box, and then gluing the arms to the lid.

Made in SolidWorks