Large Size Dimensions (in open position): (20" x 12") Dimensions (in folded position): (10" x 12") This indispensable pattern holder is a handy way to keep and display patterns and charts while working on a project. Easy to fold and unfold for storage. Lays flat when folded. Can stand upright when folded open, vertically or horizontally. Snap closure insures that materials inside stay neat and put. Extremely strong magnets keep patterns and/or charts in place. One extra long magnet strip also works as an indicator guide. Handy pocket holds patterns and charts. Pen pocket keeps marker close at hand.