the small acupuncture ball at the end of the handle can effectively stimulate the acupuncture points to help relax. 3D Ball Roller Massager: The 3D waterproof roller can rotate 360 degrees all over the body skin. It can effectively pull and lift the skin activate the skin cells and accelerate the balance of the skin. SPA level massager: With new kneading technology relieve skin sensitivity promote skin face lift body shape and improve blood circulation relieve tension. Comparison with Anti-Aging Jade Roller: Our products cannot completely separate and squeak after use and the smaller size and heavier weight give you a very good handle when you massage. Our 3D facial roller is made of high-quality material not plastic. Environmentally friendly ABS material ensures it won't hurt your skin. Easy to hold easy to use simple portable no load needed easy to clean.