This stainless magnetic anklet in our line of quality magnetic jewelry has superior 4.5mm diameter 5200 gauss magnets in each link. This anklet has a 5/16" wide x 7/16" long link with 18 rare earth magnets in 8 9/16" length. It has a magnetic therapy pull strength of 930 grams. Magnetic anklet strength varies by size and number of magnets. Magnetic anklets are the strongest magnetic therapy for foot pain (plantar fasciitis, Neuropathy, Neuroma), ankle pain (tendonitis, arthritis, sprain, edema), knee pain (arthritis, tendinitis, bursitis). However magnetic anklets often help hip and back pain. See Jewelry sizing for magnetic anklets.