1. Insert the back and side walls into the gaps in the wooden base. The back wall be positioned in the wooden base first and should slot between the two side walls.

2. Insert the screws into the lower holes on both side walls to connect them to the base. Make sure to screw them tightly and securely in place so that no gaps are left.

3. Position the top part of the case in between the side walls. The carrying handle should face upwards. Hold it in place here securely.

4. Insert the screws into the upper holes on both side walls to connect them to the top surface. Do this while holding the top part securely between the side walls so that no gaps are left. Make sure that the screws are tightly secured.

5. Insert the trays into the case.

6. Slide the transparent cover into the front of the case. It should slot neatly into the grooves.