- C1212N45Dimension: 3/8" dia. x 3/8"Material: Sintered Neodymium MagnetGrade: N45Coating: NiCuNi(Nickel)$1.03C1212N52Dimension: 3/8" dia. x 3/8"Material: Sintered Neodymium MagnetGrade: N52Coating: NiCuNi(Nickel)$1.73C1216N40Dimension: 3/8" dia. x 1/2"Material: Sintered Neodymium MagnetGrade: N40Coating: NiCuNi(Nickel)$1.21C1216N52Dimension: 3/8" dia. x 1/2"Material: Sintered Neodymium MagnetGrade: N52Coating: NiCuNi(Nickel)$1.73C1220N40Dimension: 3/8" dia. x 5/8"Material: Sintered Neodymium MagnetGrade: N40Coating: NiCuNi(Nickel)$2.26