Face Roller Can Muscle Tension Relief & Lymphatic Drainage; Reduce Facial Edema & Help Your Skin Look Fresh. Gua Sha Not Only Can Improve Circulation of Blood Flow, But It Also Helps the Cells in the Skin Get Sufficient Nutrition & Oxygen, Accelerate the Metabolism of Cells. You Can Keep the Facial Jade Roller & Guasha in the Fridge & It Helps to Eradicate Morning Puffiness & Get the Skin Refreshed. It is Made of High-quality Powder Crystal. Minimum Quantity: 50