Keyboard Tray and Glide Knape & Vogt Momentum Models 8438D20 & 6531D Ergonomic

Description

Knape & Vogt ergonomic keyboard glide and tray.  The keyboard tray model is 6531D.  The keyboard glide/arm model is 8438D20, which looks to be an older model.
The Momentum Keyboard Arm (model series 8400) is a lever-less ergonomic keyboard arm that includes independent height and tilt adjustment. It comes in a standard length, or with an extended neck for corner applications as well as in a sit-stand version for a full ergonomic solution.
All momentum keyboard arms include our patented Lift-n-Lock™ brake technology, friction tilt adjustment and 360° of swivel.
A dual-swivel feature can also be added. Momentum arms are available on either a glide track or our patented low-profile, ball bearing storage track, both in a variety of lengths.