Temperature changing color ring Will change color according to body temperature
Material: Copper
Quantity: 100Pcs
Packing: Box
Size: about 6mm in width
6 size = 16 size =16mm in diameter
7 size = 17 size =17mm in diameter
8 size = 18 size =18mm in diameter
9 size = 19 size =19mm in diameter
10 size =20 size =20mm in diameter