All posters come in 2 sizes - 12x18 and 17x22 and are printed on 100# cover gloss paper. Sturdy 3mil lamination with edge protected corners for an additional $3/each is an option that you can choose at checkout. Minimum quantity for posters is 25 although you can purchase smaller quantities of our top sellers on Amazon. We offer free personalization with your logo and contact information for quantities of 100 or more.