This expandable parts tray with silicone walls has a strong magnet on the inner bed to hold screws, nuts, etc, and an external magnet that allows the tray to be firmly attached to metal surfaces so it doesn't move if you desire. Colors are assorted and randomly selected.
NOTE:The Pinball Monk logo on the inside bed will get scratched from sharp screw threads and parts edges, but it doesn't affect the magnetic performance of the tray or the ability to collapse and expand the sides as needed.