SmartFit System allows you to measure, adjust, fit workspace that works for you.Copyholder positions documents and books in the ergonomic, recommended in-line position.Adjusts to your SmartFit personal comfort color for perfect setup that eliminates the need to turn your head as you type.Can be used with over-desk or under-desk keyboard platforms.Copyholder can also fold down over keyboard to provide a convenient, firm writing surface.Spacious enough to hold two letter size documents side by side or books up to 1" thick.Flexible dual-hinge adjustment provides multiple viewing angles and the copyholder leg flips back to ensure it fits all workspaces, regardless of size.