Squeeze it to switch the legs on.
Between the knees in a bridge, it keeps both sides working.


Squeeze it to switch the legs on.
Between the knees in a bridge, it keeps both sides working.
Less air for support, more for wobble.
Half-filled under the sacrum; full under a hand or foot.
20 cm fits mat work.
Between the knees, under the pelvis, behind the back.
Holds its air.
Airtight valve, matte PVC, pump in the box.