The PRO SOURCE economy surface demagnetizer is 4-1/4" wide x 3-3/4" high x 6.75" long and weighs 11 lbs. Use to demagnetize tools and other ferrous (iron-containing) parts that become inadvertently magnetized. Ideal for demagnetizing tools, drills, punches, and other objects. Equipped with on/off switch and grounded plug. Easy to use: pass the tool or item to be demagnetized over the top plate slowly.