ON4 Certified Medical Device Magnetic Sport ON4 Clear 60cm Necklace, Type, TYPE-C, Black,

Size: Overall length approx. 60cm, weight approx. 13g Magnet: Cylindrical, Maximum magnetic flux density: 144 millistella, Magnet size: 3.0mm x 4.5mm, Hole diameter: 1.0mm, Number of magnets: 70 Terahertz ore size: 3.0 mm diameter, number of terahertz ores: 36 Clear ball size: 3.0mm diameter, number of clear balls: 35 Country of Origin: Japan