Product Name:  Photen Silicone Necklace

Material: Nylon resin, gold-plated titanium ring is a hasp for the

Size: 50 cm

Material principle, no side effect: accelerating blood circulation, promote lactic acid decomposition, increase physical function, pain relief for people: those who love sports, travel, suffering from cervical spondylosis, and long-term use of a computer person, fatigue populations.