Assertion: tripod's feature | /r/HasProperty | bottom hook
Facets:
value: on a rapid center column
type: LOCATION
Source sentences:
text: Other features include a bottom hook on a rapid center column that lets you add stabilizing weights, quick twist rubber lock grips, anti-rotation leg system, a removable leg with rubber grip which can be used as a monopod, and a tilt range of -45 degrees to +90 degrees.