Kraft mailing tube measuring 3 inch x 48 inch features white end caps that snap-in perfectly to hold contents firmly. Kraft mailing tube measuring 3 inch x 48 inch is made using 42 percent recycled content and 30 percent post-consumer content to reduce wastage. White end caps snap into place to hold contents secure (included). Caps stay secure during shipment. Tubes are reusable and recyclable. All dimensions are inside dimensions. Contains 42% recycled content, 30% post-consumer material.