Abstract: A tool retaining device and method of manufacture comprises an attachment area having an interior sheet of material and an exterior sheet of material. A plurality of magnetic devices is arranged into a two-dimensional pattern with each of the plurality of magnetic devices being placed into individual pockets formed between the interior sheet and the exterior sheet of material. Each of a plurality of magnetic amplifiers is arranged concentrically and in proximity to individual ones of the plurality of magnetic devices. Each of the plurality of magnetic amplifiers is shaped to control an amount of magnetic force applied laterally along a face of the external sheet of material of the tool retaining device. The plurality of magnetic devices are magnetized only after being placed into the individual pockets.

Abstract: A magnetic arm band including a top sheet of material, a bottom sheet of material, a two dimensional array of magnets positioned between the two sheets of material and stitching to encase each magnet in an individual pocket. Two cinch straps on the band allow the band to be worn on the limb of a user. A stiff sheet of material is used to retain the shape of the band. The magnets may be magnetized after assembly.