[Dark gray (main body + cover)]
[sky blue (cover only)]
[Dark Grey (Cover Only)]
[Light pink (body + pink)]
[Sky blue (main body + cover)]
[Light Pink (Cover Only)]
This is a velvet fabric cover that can be used to fully store a balance cushion (balance disc). You can also adjust the air pressure while the cushion is inside. It looks like an ordinary pillow. It can be used to awareness of your beautiful posture at work or at your desk, and it can be used to train your core and abdominal muscles while training.