Aviditi SP4042 Single-Wall Corrugated Sheet, 42" Length x 40" Width, Kraft (Bundle of 5) Great for use as a layering pad on pallets to disperse weight Pads help keep tops of products dust free during storage Helps prevent strapping and forklift damage It is manufactured from 200#/ECT-32 kraft corrugated Sold in bundle quantities and product may be folded to prevent damage during shipment.