Pack of 20 - 5mm diameter x 4mm thick Each magnet's north and south pole are on opposite 5mm diameter faces - Each magnet can support 0.66kg pull vertically from the magnetic face when in flush contact with a mild steel surface Excellent resistance to demagnetisation Each magnet is gold-plated to give superior corrosion resistance and provide a professional finishColor: Gold Manufacturer: Magnet Expert® Model Number: F0504G-20 Package Quantity: 1 Part Number: F0504G-20 Size: Pack of 20N35 Neodymium Magnet for Arts, Crafts, Model Making, DIY, Hobbies, Science, Office and Home - 5mm dia x 4mm thick - 0.66kg Pull - Gold Plated - Pack of 20