we are a china manufacturer special do the plastic ball,plastic roll on ball,plastic roll on bottle ,glass roll on bottle and the perfume rods for about 9 years Our company do the products early in china,so our price and quality are all good. the ball size is :3.969mm--100mm The ball mould and plastic mould are made by ourself. Our company have the certificate:ISO9001:2008 The PP solid and hollow have passed the FDA.
U can call me Henney,my email address is :hys662010@sina.com my mobile:15068515213