BX-H1
Joins to Basics™ Clamp or Arms.
Comes with attaching knob & glide screw.

Single Sided

BX-H2
Joins from a Basics™ Pole centertop.
Comes with attaching knob.

Single Sided

BX-H3
Joins to a Basics™ clamp or arm.
Comes with attaching knob & glide screw.

Double Sided

BX-H4
Holds from a Basics™ Pole centertop.
Comes with attaching knob.

Double Sided