Quality standard strength industrial Corrugated Boxes. Cartons are sold in bundle quantities and ship flat to save on storage space and shipping. Overall Dimensions: 26" x 10" x 10". 32 ECT. These cartons are the industry standard. 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. Corrugated Boxes are manufactured from 200#/ECT 32 kraft corrugated. Sold as 25 pieces/Bundle.