Neodymium Ring Magnet OD63.5mm x H15.2mm | Hole 35.56mm N52 I MADE TO ORDER T_31mm+ Ferrofluid is used as an

Ferrofluid is used as an excellent demonstration tool for magnetic experiments and recently it is being used in modern art and for other creative purposes

This black tape magnet roll is ideal for labelling and attaching signs to different surfaces like wood

Built using premium neodymium rare earth magnets arranged in a carefully calculated Halbach array configuration

One of the strongest commercially available magnet grades

Neodymium and Samarian Cobalt are permanent magnets which means they don't lose their magnetism over time like Alnico

Neodymium Ring Magnet OD63.5mm x H15.2mm | Hole 35.56mm N52 I MADE TO ORDER T_31mm+ Ferrofluid is used as anNdFeB Ring Magnet Outside Diameter: 63. 5mm (2. 5" in.) Height: 15. 24mm (0. 6" in.) Inside Diameter: 35. 56mm (1. 4" in.) Grade: N52 Coating: Nickel(Ni) Magnetized Direction: Through height 15. 24mm Approximate theoretical holding force: ~33. 7kgs