ESI Ergo SOLUTION ALL-FIT Ultra Compact Arm & Keyboard Platform AA100 Ultra Compact Arm and PL003-27N Keyboard Platform for Shallow Surfaces (12.25' Track) Includes a PL003-27N Keyboard platform and AA100 Lift & lock articulating arm 27 platform with notched cutout for additional retraction Designed for benching systems & tables where minimal track space is available For use with straight edge work surfaces