Need to ship something that can't get bent or crushed? These heavy-duty mailing tubes are exactly what you're looking for. Made from .125 thick spiral wound fibreboard in that classic kraft color, they're seriously sturdy - we're talking 'survive the postal system' sturdy. Each tube comes with plastic end caps that actually stay on, so your contents stay protected during shipping. The 3x24 inch size is perfect for posters, blueprints, artwork, documents, or anything else that needs to arrive in perfect condition. Unlike flimsy tubes that bend if you look at them wrong, these maintain their shape thanks to the rigid construction. Whether you're an artist shipping prints, a business sending important documents, or just someone who needs to mail something long and fragile, these tubes have you covered. The spiral wound design gives them extra strength without adding crazy weight, which is good news for shipping costs. Basically, if you need something to arrive the same shape it left in, this is your solution.