100 EcoSwift 9.75 x 12.25 Rigid Photo Mailers Stay Flats White Cardboard Self Seal Envelopes 9.75x12.25 Dimensions: 9.75" x 12.25" Self-sealing, peel and stick adhesive keeps contents secure Lightweight cardboard construction helps save on postage Durable and rigid to provide bend resistance Quantity: 100