100 – 9 x 6 x 4 Shipping Boxes Packing Moving Storage Cartons Cardboard Mailing Box 100 – 9″ x 6″ x 4″ kraft corrugated boxes. Length 9″ width 6″ height 4″ – inside dimensions. • Industry standard boxes are constructed from 200 lb single wall / 32ect (edge crush test) kraft corrugated. • High quality – UPS, FedEx, and USPS approved. • All ship and store flat to save space. • Shipping labels stick securely. PayPal. Credit cards (Visa MasterCard, American Express, Discover) are also accepted through the PayPal Checkout. Item usually ships the same day or the next business day. Tracking information is normally uploaded by the evening of the shipment date. Order ships FedEx or UPS Ground.