- R080202N45Dimension: 1/4" od x 1/16" id x 1/16"Material: Sintered Neodymium MagnetGrade: N45Coating: NiCuNi(Nickel)$0.26R080204N40Dimension: 1/4" od x 1/16" id x 1/8"Material: Sintered Neodymium MagnetGrade: N40Coating: NiCuNi(Nickel)$0.33R080402N40Dimension: 1/4" od x 1/8" id x 1/16"Material: Sintered Neodymium MagnetGrade: N40Coating: NiCuNi(Nickel)$0.26R080404N40Dimension: 1/4" od x 1/8" id x 1/8"Material: Sintered Neodymium MagnetGrade: N40Coating: NiCuNi(Nickel)$0.33R080408N40Dimension: 1/4" od x 1/8" id x 1/4"Material: Sintered Neodymium MagnetGrade: N40Coating: NiCuNi(Nickel)$0.51R080416N45Dimension: 1/4" od x 1/8" id x 1/2"Material: Sintered Neodymium MagnetGrade: N45Coating: NiCuNi(Nickel)$1.03