New Lever-free Adjustment for Keyboard Platform ApplicationsPatented lever-free height adjustment Soft touch knob for tilt Integral tilt indicator 7 1/2" of height adjustment (1 1/4" above the worksurface) +/- 15 degree of tilt 360 degree swivel EZ-Glide track system or PBT (precision ball bearing track) Cable management system Steel construction with durable powdercoat finish New injection molded PF platform with light weight design and smooth, snag-free surface preventing interference with knees or clothing PF platform fits MPG mouse platform Positive Tilt Lockout option available EZ-Specs include: PLS-3 - AKP105, T21, PF1824, MPG PLS-7 - AKP105. T21, PD1824, AMS PLS-31 - AKP105, T21, PC2524 PLS-41 - AKP105, T21, BBP1824