100 EcoSwift 12.5 x 9.5 Rigid Photo Mailers Stay Flats White Cardboard Self Seal Envelopes 12.5x9.5 Dimensions: 12.5" x 9.5" 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