I do all of my own printing on Canon large format printers that utilize 16-bit print technology. Paper prints are guaranteed to last more than 90 years when properly displayed behind UV-protective glazing and away from direct sunlight. Canvas prints also have a 90+ year longevity rating, and are easy to care for using a soft damp cloth for occasional dusting.
Prints larger than 11"x17" will be shipped in a heavy duty 3-ply kraft mailing tube, insured for the amount of your purchase. Smaller prints will be shipped flat, sandwiched between heavy duty protective cardboard.
If you're not 110% delighted with your purchase, your money will be cheerfully refunded, no questions asked.