Staples Shipping box measures 30 x 5 x 30 and is made of strong corrugated fiberboard for added durability sold as 10 per bundle. Staples Shipping box measures 30 x 5 x 30 and has a capacity of 65 lbs. Box is made of 30 percent recycled content and is an ideal choice for packaging goods/materials securely sold as 10 per bundle. ? Strong durable corrugated fiberboard. ? 200#/ECT-32 (Edge Crush Test) - holds up to 65 lbs. ? Meets most mailing and shipping carrier specifications. ? Contains a minimum of 30% recycled content. ? Staples Brand 100% Satisfaction Guaranteed. ? Sold as 10 pieces/Bundle.