'A central cohesive element, or something inserted to keep a wheel from slipping off'
a linchpin
LOOSE WHEEL: A central cohesive element, or something inserted to keep a wheel from slipping off
A central cohesive element, or something inserted to keep a wheel from slipping off
A central cohesive element, or something inserted to keep a wheel from slipping off
LOOSE WHEEL
a linchpin
LOOSE WHEEL