Professional tool for commercial or occasional use 4" round / circular magnetic parts tray This listing is for a pack of 5 magnetic parts tray dishes Great storage for screws and fixings while carrying out repair work Ideal for craft work or engine work as it allows you to put all your nuts and bolts / needles and they stick to the tray to prevent you losing them Polished stainless-steel construction Powder coated yellow for easy find as well as to prevent rust and corrosion resistance Magnetic base adheres securely to ferrous surfaces without marking Rubber coated magnets to prevent damage to the work surface it is attached to Magnet strength 1100 - 1200 Gauss 4" / 100mm Circular magnet tray