Features： 1、Soreness Relief: Match with muscle massager, using scientific vibration frequency and amplitude, it can activate muscles, increase blood flow, greatly reduce muscle recovery time, reduce soreness. 2、Shape V Face: Make skin care products absorb better, tighten and lift the skin, lock in nutrients, help shape V face, improve skin sagging, brighten skin, make skin smooth and elastic. 3、Scope Of Application: Suitable for most muscle massager. The outer diameter of the massage head is about 18mm, suitable for muscle massager with about 17.5mm inner diameter. 4、Portable Design: Replaceable head can be easily installed on the muscle massager. Light weight and in small size, easy to store and carry, for home and travel use. 5、Stainless Steel Material: Massage head is made of stainless steel material, eco friendly and no radiation, high hardness, anti rust and firm, stable and durable. Specification： Item Type: Muscle Massager Head Material: Stainless Steel Scope of Application: Muscle Massager Applicable Caliber: Approx. 18mm / 0.7in Applicable Parts: Impact deep tissues, such as meridians, acupoints, etc. Soothe facial muscles, shape V face, and deeply relax every muscle of body. Package List： 1 x Massage Head