Product information:
Chain material: stainless steel;
Pendant metal material: zinc alloy;
Process: electroplating, epoxy;
Chain size: chain length 50cm;
Pendant size: 1.8cm * 1.4cm;
Connection buckle: 0.9cm stainless steel buckle;
Weight: about 3.5G;
Feature 2: change color with temperature, black below 14 degrees, and different colors between 14-38 degrees,