Features:1. Our massage head adopts scientific vibration frequency and amplitude to facilitate replacement.2. Promote healthy blood flow and relieve joint pain.Helps reduce muscle pain.3. Standard ball is suitable for small muscle group and big ball is suitable for large muscle group.4. Effective tools for athletes, weightlifters and weightlifters.Specifications:Tested jigsaws:Black & Decker JS20 seriesBlack & Decker 4.5AmpBlack & Decker LPS 7000For 5.5AmpFor JS120BN (For All can use)Milwaukee M18Porter 6ampWorx wx540 wx550Ryobi all seriesMakita all seriesAll Booster Massage g un

Package Included:Type A : 3Pcs Head(A)1 x Small Size EVA Ball Comfort Tip(for muscle)1 x Large Size EVA Ball Comfort Tip(for muscle)1 x Cone Trigger Point Tip (Pain point massage)1 x 75mm Extended RodType B :3Pcs Head(B)1 x Flat Warm Up Tip(Full body)1 x Fork Leg Tip(for spine massage)1 x Spade Tip(for back cervical)1 x 75mm Extended RodType C : 6Pcs Head1 x Cone Trigger Point Tip (Pain point massage)1 x Flat Warm Up Tip(Full body)1 x Fork Leg Tip(for spine massage)1 x Small Size EVA Ball Comfort Tip(for muscle)1 x Large Size EVA Ball Comfort Tip(for muscle)1 x Spade Tip(for back cervical)1 x 75mm Extended Rod