Magnetic clamp.

Magnetic clamp for holding metal objects or tools on shelves, tables or racks.

Designed to fit shelf sizes from 9 mm to 50 mm (compatible with IKEA LACK wall shelves).

Designed for 20 x 10 x 3 mm magnets.

You can place the magnets horizontally or vertically, as you can see in the third image.

Assembly and usage videos.

https://youtu.be/5y-XMiWDi68
https://youtu.be/aGAkRd87ubY
https://youtu.be/L5NODYgMF_s