This is a small diameter hollow cylindrical ring magnet made of rare earth neodymium iron boron, N40 grade, nickel plated on the surface, axial magnetization. How small is this magnet? Outer diameter: 2mm, inner hole: 1.2mm, height: 3.7mm, hole depth: 1.8mm, not straight hole. It is applicable to precision electronics and electronic components. If you can't find such a powerful small magnet, the supplier of ultra-thin powerful magnet can contact the courage magnet manufacturer (China).
Small size hollow cylinder ring neodymium magnet 2x1.2x3.7mm sample shot picture;

Note: We do not mark the price because we are a magnet manufacturer. We can customize the size, performance grade, coating, temperature resistance, tolerance and so on of the magnet, while traders generally mark the price.
Check the courage magnet manufacturer for more specifications of hollow cylindrical permanent magnet: Hollow cylinder magnets [Price Sales Customize]
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