This box consists of two pieces of board that fold around the object and then tuck into itself to create the box. The base and lid can be cut separately.

Cut out the lid and the base of the box at the desired dimension.

Fold the lid and the base sections along the creased edges.

Place the base perpendicular to the lid at the fourth square from the end and secure with hot glue.

Fold in the flap at the opposite end of the lid. 

Fold over the flap at the opposite end of the lid.

Fold over the flap at the opposite end of the lid so that it is flat.

Bring in the two sides of the box over the edges of the lid.

Fold the remaining flap of the lid over the box.

Tuck the remaining flap of the lid into the box.

The box is assembled.