The ErgoFlier T17 features a fully adjustable arm that operates with a single, soft touch control knob that simultaneously adjusts height and tilt. Spring assisted to counterbalance keyboard and tray weight. Durable, stable and smooth Teflon™ glide adjusts depth of tray on 17” track. Adjustment Ranges: 5.5” neck. 360° swivel. 10° positive tilt to 15° negative tilt.