Industrial strength with economical kraft savings. • Heavy board keeps items flat during shipping. • Will not bend or crush. • Tab lock for mailing or shipping. MODEL NO. S-2220 OUTSIDE DIMENSIONS 93/4×121/4″ (5) RECOMMENDED USE Letters/Photos THICKNESS: • .036″ RECYCLING: • Recyclable • Recycled Content: 100% • Post-consumer: 70% You will receive 10 stay flat envelopes