Specification: Name: Exercise Healthy Handballs Material: Corundum marble Product Size: Each dia (about) 2inch/5cm Weight: 0.8LB Using: Exercise, Gift Color: Dark grey Feature: Hand movement is beneficial to the brain, playing a healthy ball could make your thoughts focused on your hands, and eliminate all kinds of distractions for your brain to relax. Used for hand function recovery, relaxation, and exercise, Improve circulation of blood in the hand and exercise finger flexibility, Apply to body's fatigue recovery. Relaxing your hand fingers, wrist, and arm, could also stop your hands from bad habits, improve circulation, help with meditation, and increased concentration. KINDLY NOTE: The massage handballs are made of natural stone, and the pattern of each ball is somewhat different. PACKAGE INCLUDED: - 2 Pack Massage Baoding Balls - One Carry Bag