These are manufactured by Uline and are wonderful, quality boxes! I have used them for over 10 years in my business but have recently switched to preprinted boxes and have an abundance of these I need to clear out. Very sturdy and sound for shipping- they don't crush easily and are thick enough to withstand being rough-housed by shipping services- I use these when shipping glass ornaments and I have a .01% breakage rate- these boxes are great! 

I ship out quickly and from Georgia, so you'll get your supplies quickly- no waiting on overseas delivery.