These are standard poster size topload holders. The toploaders measure 24-5/8" x 36-3/16" x 1/16" (exterior); 24-1/8" x 36-5/16" x 1/32" (interior).
They are made of a rigid crystal clear PVC material to keep your posters from bending. These acid free, archival quality toploaders are the perfect way to store and display your posters while keeping them extra safe from wear and tear.