... V8 Bipolar rf,940 laser, vacuum suction roller massage useful, comfort 4 handle facial beauty ... penetration (5-15mm). Meanwhile, vacuum and roller mechanical tissue manipulation nips and stretch fibrillar connective tissue, effectively break ... tightening, wrinkle removal, skin surface smooth, massage, and eyelid area treatment.Advantages of facial beauty machine V8 ... V8 with vacuum, laser, rf and roller