Form Color	Silver White
Material	Magnet
Quantity	1 Piece
Suitable Age	12-15 Years、Grownups
Packing List	1 x Ring

Inside diameter 18mm perimeter 56.5mm wide 4.1mm thick 2.1mm Dimensions: 0.94 in x 0.94 in x 0.20 in (2.4 cm x 2.4 cm x 0.5 cm)
Weight: 0.14 oz (4 g)