syhonic yoga ball base ring yoga ball fixed base anti-burst stability exercise ball holder for yoga,pilates,gym,office and home exercise syhonic <b>features:</b><br /> it can increase blood circulation,strengthen heart and lung function <br /> and can keep your spine straight,thus improving your hump-back <br /> issue!it is a combination of leisure,exercise,weight loss and self-cultivation,safe and convenient to use!<br /> meet the needs of a variety of people,whether you are pregnant <br /> women or our parents and children can use,this is a device suitable for mass fitness,very practical.<br /> <br /> packing list:<br /> 1×fixed base<br /> 2×lifting handles<br />