Features:,Magnetic closure,Turn On\/Off the light by twist the Magnetic clasp,pendant shape: star, dolphin, heart-shaped, drop, plum, cross, butterfly, moon, conch, peach heart,Pendant size: about 4CM,Pendant Material: transparent acrylic,Luminous color Blue,Battery: AG10(Necklace battery can be replacedafter Run out),,Warm Tip:,Please peel off the film on the end of clasp (containing the batteries) before use,Please make sure that the zigzag on the two ends of clasp be completely occlusive, then the pendant will shine,,Package Included:,1 x Blue LED Light Lamp Necklace (sent by random),