Choice of 3 Knob Styles
Adjustable Gap And Tension
Carbon Fiber Reinforced Pivot Arm
3d Printed with biodegradable PLA, made from Corn !
Two Nylon Precision Self Lubricating Bearings and Solid Brass contacts
Super Smooth Action for a Great QSO.
Dimensions:  4.00" L x 1.50" W x  1.75"H
Uses standard 3.5mm Audio Cable.  
Wrench Included.