Features: brand new and high quality Vibrating massage ball, newest vibrating design specially function on small muscle groups. high intensity vibration helps penetrate deep into muscles, effective for releasing plantar fasciitis, tensions, myofascial release and trigger point treatment. 3 Vibration levels ,enhance your pre-workout and recovery system , adjustable electric massage ball for ideal for warming up, circulation improvement and recovery of sore and tight muscles. Rechargeable & portable, massage ball is lightweight and compact ,easy and quick charge with usb cable, convenient to use any for time and anywhere for relieving your back, hips, legs, arms, waist, and feet. Soreness & relax,-ideal rechargeable roller for muscle tension and workout soreness with special designed textured surfaces, massage balls physical therapy effective as a powerful tool in the massage. Wonderful gift ,it can be a sweet wonderful gift for your friend ,family . Specifications: Material:Silicone ABS Color:Blue,Black,Rose,Black Ring Black Ball Note: Please allow 1-2cm errors due to manual measurement,pls make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1 Piece Massage Balls