Review on BRABUD 1.4'' Dark Grey Marble Baoding Health Stress Exercise Balls - Chinese Craft Collection (Box-Packed) by Jon Thibeault

These balloons last forever, but unfortunately they are too small. Marble is a beautiful word that means stone! And no sound! What is the purpose of having them without sound. Sounds like rubbing two stones on the outside. With all of this, I can go down the stream and find two rocks. GOOD FOR COMPLETE SILENCE! And I have long piano fingers that are 6 feet tall. My hands aren't huge, but right in between!