This handmade Superior triple strength hematite magnetic anklet is made of crushed hematite formed into a ceramic bead. We have combined the magnetic therapy of hematite with the gemstone healing of Black Grassy. Our anklets are strung on .8mm copolymer and have a 5000 Gauss Gun Metal epoxy magnetic clasp. Magnetic anklets are strongest for foot, ankle and knee. However Anklets often help hip and back. See magnetic jewelry sizing to determine magnetic ankle bracelet size.