6 1/2" x 6 1/2" x 72" Telescoping Outer Boxes. Adjustable 2-piece set designed to fit tall and irregularly shaped items. One inner and one outer carton required to make a set - sold separately. Use with T6672INNER to complete the set. Manufactured from 200#/ECT-32 kraft corrugated. Cartons have a F.O.L. (full over lap) bottom for added strength. Sold and shipped flat in bundle quantities.