Binder features a unique ergonomic design with an easy-grip cover and stable writing surface when opened out flat. Significantly easier to open and close, requiring only one finger. Archival-safe for all documents and photos. Will not lift or transfer inks. Received "Ease of Use" Commendation from the Arthritis Foundation. Safer to operate (will not pinch fingers or cause injury when closing). Easy Open binder offers the security of a positive lock when closed. Trigger will not scratch work surface.