The Peep Squirrel™ Corner Protector Instructions oversensitiveness mre Slot A Fold Corner Protectors can be folded for ¥2, 1 and 1% inch thick board(s). Place white surface down. Fold at 1 and 2. Fold at 3a, boor 3c. Completed corner protector Fold at 4, affixed to a frame. Fold Fold at 6 and insert tab into slot sure that the corner tab (Fold 1) is inside the corner protector.