This pack of 6 SDS brand Ferrite Pot Magnets is a fantastic bargain for anyone in need of strong magnets for their business or industrial needs. These silver-coated magnets have a diameter of 66mm, an 8mm hole, and a pull strength of 39kg. They are perfect for use in fasteners and hardware, and can be used to hold a variety of items securely in place. The magnets are made of high-quality materials and are built to last, making them an excellent investment for any business owner.