Type: Rod Magnets Material: Neodymium Nickel Coated Magnets Rating: N35 Magnetic force: 4000 gauss Remanence: 1.21 (T) Operating temperature: 80 (°C) Magnetic induction coercivity (min) 10.8 KOe 860 KA / M Intrinsic coercivity (min) 12 KOe 960 KA / M The maximum energy product (range) 33 to 37 MGOe 263 of 295 KJ/m3 Material density of 7.5 27pcs Free Balls would come with the magnet rod! *Round Magnetic Rod X 36pcs *8mm Balls X 27pcs *Metal Box X 1