Features & Functions:Portable and lightweight.Incremental speed dial adjustment.high rotational speed up to 2500 RPM.Comfortable soft rubber hand grip.Four attachments for different usagesMicro Filer Attachment (for feet)Roller AttachmentFlat AttachmentWavy AttachmentTone muscles and release tensions.Suggested Usage:Underarms: Toning your underarms.Shoulder: Relieve tension and stress on your shoulders and back.ABS: Slim and sculpt your ABS.HIPS: Shape and tone your HIPS and buns.Thighs: Slender your thighs and relieve muscle tension.Calves: Relax tired and aching muscles.Feet: Remove calluses and dry skin.Working Principle: Through high-speed rotational & vibration to massage the fat, the fat will burn, it will feel a heat to achieve the effect of massage and weight loss.