How much does this cost to the nearest dollar?

Workrite Pinnacle 2 Value Arm w/17 nylon glide track Advantage-Dual System
This keyboard system features our Advantage-Dual platform with two swivel-out mouse surfaces and our Pinnacle 2 Value Arm. Dual mouse platforms enable users to alternate mouse positions, reducing muscle strain. The efficient design of the mouse platforms reduce the incidence of lifting and repositioning the mouse, a factor in repetitive stress injuries. Swivel out mouse platform Swivel out platform under keyboard when not in use Ultra-thin platform features Optimizer document holder Removable LeatherRite palm support No Knob No lever Lift N Lock One touch height adjustment Manufacturer WorkRite, Brand Workrite Dual Keyboard and Arm and Track, model number Is Discontinued No, Color Black, Material Type Nylon, Manufacturer Part Rank Office

Price is $
Price: $276.6