Feature:1. Ergonomic antislip handle design, comfortable grip and having good hand feelings to fit your palm.2. Double massage ball design, better massage experience, moderate force design to achieve desired massage effect.3. Smoothly massage ball design, comfortable touch feelings, not hurt skin and will not cause any discomfort during using.4. Nonslip ergonomic grip, effective relieve muscle fatigue and stimulate acupuncture points, suitable for home use.5. About 36 x 4cm / 14.2 x 1.6in of the size, made of high quality silicone and ABS material for maximum durability.Specification:Item Type: Massage HammerMaterial: Silicone + ABS Function: Relieve muscle fatigue and stimulate acupointsSize: Approx. 36 x 4cm / 14.2 x 1.6in .Package List:1 x Massage HammerNote:Please do not use it for too long and pay attention to the strength when using it.