25 Boxes of 6x6x4 / 200# 32 ECT Sizing: Listed in Length x Width x Height format in Inches that are interior dimensions of the usable box space. Superior Quality and Design: All our shipping boxes are sturdy enough for packing, shipping and storing small items and lightweight fragile items. Proudly made and manufactured in the USA Practical Easy Use: Easy set up makes for a simple and organized moving, packing, or shipping. All shipping box are shipped flattened for easy storage, and they are easy to fold and assemble with tape of your choice. Secure Seal Packaging: Secure Seal delivers you a stronger, lightweight box that folds together fast and stands up to everything you need it to. We provide a huge variety of boxes with wholesale savings. Quality standard strength industrial Corrugated Boxes. ;Manufactured from 200#/ECT-32 kraft corrugated. ;Corrugated boxes are recyclable. Corrugated cardboard that provides maximum protection during shipment and ensures your products arrive safely to your customers.