18"x24" Toploader - Pack Of 5.  Open on the short side inches.  Exterior Dimensions: 18 1/2 x 24 1/4 inches.  Interior Dimensions: 18 1/8 x 24 2/8 inches.   The rigid PVC used in our  18"x24" toploader  contains no plasticizers or stearates.  Our high quality PVC does not migrate and will not harm your photos or prints, while offering maximum protection and visual appeal. Use this holder to protect, store and display your 18"x24" prints and documents.