CMS Magnetics Magnetic Block Neodymium 3x1 1/2x1/2" Permanent Neodymium Bar Magnet 1 Ea. 100% Customer Satisfaction Guarantee Making This A No Risk Purchase For Extra Piece Of Mind CMS Comprehensive Hands On Quality Controls Regulated By Our In House Quality Assurance Staff Checking From Product Conception To Shipment Ensures You Get The Top Quality Magnets For Sale In The US Today Our Extensive Warehouse Inventory Relieves The Worry Of Not Being Able To Get More Of The Same Magnets In Mid Project Fast Our Three Layer (Nickel-Copper-Nickel) Increases You Magnets Physical & Corrosion Protection For Many Years Of Trouble Free Use And Gives It That Chrome Colored Touch Of Class. Top Shelf Manufacturing & Machining Give You Very Exacting Dimensions Of (+/_ .002 ) For The Times Your Project Requires That Level Of Discretion Accurate Dimensions - All the Tolerances are +/-0.002" Magnets Each Of These Bar Magnets Provides 106 Pounds Of Holding Power Maximum Working Temperature 176 F (80 C) Material: Sintered Ndfeb Neodymium Rating: 13,200 Gauss Pulling Force Pole Orientation: Axially Magnetized, The Poles Are On The 1/2&#034; Thickness Coating: ni+Cu+Ni 3 Layer Plated Tolerance: All The Dimensions Are +/-0.002in With Coating