Neodymium Ring Magnet - 72mm x 32.5mm x 13mmMagnetic Product Description: This rare earth ring magnet has an outside diameter of 72mm, an inside diameter of 32. 5mm and a thickness of 13mm. It has a pull force of 60kg. It is identified by the AMF magnet part number 23001. Uses for our rare earth ring magnets: This Neodymium Ring magnet is the largest in our range with a strong 60kg pull force it is suitable for commercial use only. Ring magnets are often incorporated as part of a mechanism or