Specification Brand : Paper Mart BulletPoint1 : Cardboard Tubes for Crafts and Shipping - Ship and store artwork, posters, blueprints and documents with these brown round mailing tubes BulletPoint2 : Secure Shipping Solution - These tubes protect against creases, bends, and tears, keeping your contents in pristine condition upon arrival. The sturdy 0.08-inch wall thickness prevents bending and crushing. BulletPoint3 : Versatile Size - Our brown mailing tubes measure 4 inches in diameter and 18 inches in length. Tube depths are inside usable dimensions with caps inserted. Actual outside length adds an additional 1". BulletPoint4 : Convenient Bulk Pack - Each pack contains 12 tubes, making it perfect for business use, bulk shipping, and storage needs, ensuring you always have the necessary supplies on hand BulletPoint5 : Brown Mailing Tubes - These mailers feature an extra sturdy recycled spiral wound kraft chipboard body with an open end on each side. For maximum efficacy, seal each end with a Plastic End Cap (sold separately). Each mailing tube will require two end caps Capacity : 65 pounds Color : Brown ExternallyAssignedProductIdentifier1 : 841436022880 ExternallyAssignedProductIdentifier2 : 0841436022880 ExternallyAssignedProductIdentifier3 : 00190651296720 FinishType : white IncludedComponents : Paper ItemName : Paper Mart Cardboard Tubes for Shipping, 4 x 18 x 0.08 Inch Brown Mailing Tubes, Bulk Quantity Pack of 12 ItemPackageDimensions_Height : 7 inches ItemPackageDimensions_Length : 12 inches ItemPackageDimensions_Width : 2 inches ItemPackageQuantity : 1 ItemTypeKeyword : tube-mailers Manufacturer : Paper Mart Material : Cardboard ModelName : CYUS-MailingTube-20p-Wht-240706fa ModelNumber : 087418 NumberOfBoxes : 1 NumberOfItems : 12 PartNumber : 087418 ProductDescription : Brown Mailing Tubes 4" X 18" - 0.080 Thick | Quantity: 12 - Brown Mailing Tubes 4" X 18" are made of spiral wound chipboards. Cardboard tubes are great for shipping and mailing artwork, posters, and other flat items. Round tubes can be closed with plastic end caps. ProductSiteLaunchDate : 2018-04-02T07:00:00.000Z Size : 4" x 18" Style : 0.08" Tube Wall Thickness SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 UnitCount : 1 UnspscCode : 44121500