Protective and economical, this set of 100 adjustable blue picture frame corner protectors is the ideal way to protect artwork, photos, and books from damage during transit. These protective corners for artwork can be assembled quickly and easily applied in seconds. Simply remove the perforated corners and fold along the lines. The corner protectors for shipping have 3 slots that allow you to adjust depending on the frame size. Sliding each tab can accommodate frame corners between 1 to 2.2 inches in width. Made of thick corrugated cardboard, these corner protectors provide minimal impact absorption to protect against accidental drops and bumps.