B84X0 - Neodymium Block Magnet - 1/2" Len x 1/4" Wid x 1" Thi

• Dimensions: 1/2" x 1/4" x 1" thick
• Tolerances: ±0.004" x ±0.004" x ±0.004"
• Material: NdFeB, Grade N42
• Plating/Coating: Ni-Cu-Ni (Nickel)
• Magnetization Direction: Thru Thickness
• Weight: 0.54 oz. (15.4 g)
• Pull Force, Case 1: 10.54 lbs
• Pull Force, Case 2: 10.54 lbs
• Surface Field: 6474 Gauss
• Max Operating Temp: 176ºF (80ºC)
• Brmax: 13,200 Gauss
• BHmax: 42 MGOe

The B84X0 is what many people commonly refer to as a "bar" magnet, as it is magnetized through the 1" dimension.  The poles are located on the smallest ends, so they behave like the old fashioned alnico bar magnets that have been used in school demonstrations.