This superior triple strength hematite magnetic bracelet is made of crushed hematite formed into ceramic hematite beads. It provides very good magnetic therapy. Our magnetic bracelets are strung on 80 pound copolymer and have a 5000 Gauss Gun Metal epoxy magnetic clasp. Magnetic bracelets are the strongest magnetic therapy for hand (arthritis tendinitis), wrist (arthritis, tendinitis, carpal tunnel), elbow (arthritis, tendinitis) and shoulder (bursitis, tendonitis, frozen shoulder) on the arm they are worn. However magnetic bracelets will often help neck, back and knees. Determine magnetic bracelet size by measuring the circumference and add3/4 inches.