800 gauss ferrite magnets. Accu-Band are the most popular acu-magnets. 24k gold plated (GP) or non-plated (NP) 0.09" x 0.2" dia magnets with 0.8" dia adhesive plasters. The bionorth (-) side contacts the body. This bionorth (-) side also features a tiny protrusion at the center of the magnet which provides additional stimulation to the point. Pkg of 12.