Our shipping, mailing and packing boxes come in a variety of sizes to fit all your needs. The Seal-It extra small box 9.5 x 6 x 3.75 inches is great for mailing, shipping, storage and moving. The corrugated container board box is made of 100% post-consumer recycled content. The white boxes have been certified with durable 32 lb. edge crush test (ECT) rating, each box holds up to 65 lbs. and burst strength of 200 lbs. pressure per square inch, minimum. This extra small box is ideal for small, fragile, individually wrapped items that require a more compact packaging.