Specification: Item Type: Electric Spine Chiropractor 30 Gears Adjustable Strength: 50N, 100N, 150N, 200N, 250N, 300N, 350N, 400N, 450N, 500N, 550N, 600N, 650N, 700N, 750N, 800N, 850N, 900N, 950N, 1000N, 1050N, 1100N , 1150N, 1200N, 1250N, 1300N, 1350N, 1400N, 1450N, 1500N 5 Gears Adjustable Beating Frequency: Low, medium, high, super, frequency conversion Function: 1. Body Massage: Provide stable and powerful force, more effective and comfortable massage, 2. Suitable for scoliosis, thoracic and spine soreness, and can be used for joint relief, cervical spine adjustment, thoracic spine massage, cervical spine massage, body massage and health care 3. Principle of physical pressure massage: imitate human hand massage, adjust bones, straighten spine, straighten up immediately, get rid of pain, and make people refreshed and energetic. It can be in contact with the skin under 2.3cm to effectively adjust the bones and massage once to make relaxation time longer. Will provide stable and powerful strength, more effective and more comfortable Package List: 1 x Adjusting Corrector Gun 6 x Physiotherapy Heads 4 x Protective Covers 4 x Rubber Sleeves 1 x Manual 1 x Storage Bag