Stylish and ergonomic design stimulates the back and core muscle movement, improves the posture and illuminated back pain quickly and easily to blow up with handle to easily move from room to room anti-roll safety function to prevent the ball from rolling away: inner ball, fabric balhoes, 2 plugs and plugs can be wilten-plashed and can be wiltendopard and can be wilten-decomposed and can be wilten-plashed degrader and Plug-mlast- und Plug-Plash-Steckverpackungsfarbe: Schwarz