Desk Organizer, Also Usable as a Planter Cover

This is a set of three cases with trays.
They are made of metal, lightweight, and magnetic.
I bought them about 10 years ago because I fell in love with the colorful green.

I used them to store small items on my child's desk, such as pens and stationery.
I have never used them in wet areas like the kitchen, washroom, or bathroom.

They are no longer needed due to redecorating my room.
I would like to sell them to someone who can use them, so I will be listing them for a limited time until Golden Week in May.

They were sold at a large home improvement store.
They were not in the stationery section, but rather on the shelf for gardening supplies, possibly as planters.
I assume they are originally intended for use with plants.

I would like to sell them for a lower price, but I cannot reduce the shipping costs due to their size.
(T_T) I apologize, but please refrain from negotiating the price.

Size (when the three trays are placed side-by-side)
Width: Approximately 30 cm
Depth: Approximately 10 cm
Height: Approximately 12 cm