Momentum Keyboard Arm
The Momentum provides a solid solution with fast position changing capability. It comes in three different versions for maximum flexibility. All include the following:

Standard Length (model series 8438 & 8638)
The Momentum arm is perfect for anyone who needs a solid support with fast position-changing capability, or in stations used by more than one person.

The extended length Momentum arm is ideal for corner-mount locations. It provides a solid platform with fast position-changing capability, and works well on stations used by more than one person.

Features Low profile design		Benefits Provides maximum leg room
Patented spring-assisted Lift-n-LockTM counter balancing system (no knobs or levers)		Easy to make precise height adjustments for maximum comfort
Soft-touch knob for tilt adjustment		Easy to make precise tilt adjustments for maximum comfort
7 1/2" extended neck		Added neck length is ideal for corner locations
Dual swivel option		Allows keyboard tray to be parallel to the desk even when corner-mounted
360 degree swivel		User can move keyboard freely from side to side
Available with either glide or low-profile ball bearing storage tracks		Fully retractable when not in use; choose the one that fits your budget
Positive tilt lockout option		Promotes healthier negative tilt of keyboard; reduces risk of repetitive stress injury

Sit/Stand Length (model series 8478 & 8678)
The original Sit-Stand Arms have been redesigned to provide better ergonomic support for both seated and standing positions. The new design builds on that ergonomic comfort by moving the user closer to the work surface.

Features Increased height range from 8.25” above track to 5.88” below		Benefits Comfortable positioning at either seated or standing postures
Enhanced, patented Lift-N-Lock™ braking mechanism		Superior lock-up, increased stability Easy adjustment of height of keyboard tray
Reduced neck length		Allows user to be closer to the desk in seated and standing positions
360º swivel		Keyboard tray moves easily from side to side for more flexibility
Positive tilt lockout option		Promotes negative only tilt of keyboard
Dual swivel option		Keyboard can always be parallel to desk even when corner mounted
Wherever possible, recycled materials are used to manufacture components Designed for disassembly and 100% recyclability		Environmentally friendly