Sorter snaps together in seconds with no tools required. It is made of a durable plastic which outlasts cardboard. It is sturdy enough to hold 500 sheets of 9 x 12 construction paper in each of the three compartments.

• Made from durable plastic that will not crack or dent and is moisture resistant.
• Snaps together in seconds.
• No tools required.
• Three compartments fit 9" x 12" construction paper.
• Outlasts cardboard.