Use these large EO cartons to consolidate multiple piece shipments. Protects bulky hard to pack irregularly shaped items. Sold and shipped flat in bundle quantities. • 275# Double-wall/ECT-48 (Edge Crush Test) - holds up to 100 lbs. • Heavy-Duty boxes provide added protection to ensure that your shipments arrive safe. • Meets most mailing and shipping carrier specifications. • Contains a minimum of 30% recycled content. • Staples Brand 100% Satisfaction Guaranteed. • Double Wall Boxes are manufactured from 350# D.W./ECT 51 kraft corrugated. • Dimensions: 30 x17 x17 . • Capacity (Cu. Ft.): 5.01. • 5/Bundle. • Sold as 5 pieces/Bundle.