Please check my other auctions for the Yankee Stadium Facade border and Monument Park retired numbers, and custom Joe DiMaggion sign! They are about 9.5" x 5" each- The face is a thick stock photo type paper that is mounted on a foam board backing that is about 1/4 thick. While you could use double sided tape, 3m foam mounting strips, etc... These are very light, and a small square or two per pennant will do the job and allow you to remove them without damaging the items or the wall. The item "NEW YORK YANKEE STADIUM CHAMPIONSHIP PENNANT BANNER FLAG POSTER TICKET JERSEY" is in sale since Tuesday, September 06, 2011.This item is in the category "Sports Mem, Cards & Fan Shop\Vintage Sports Memorabilia\Pennants, Flags". The seller is "bronxxbombers213" and is located in Staten Island, New York. This item can be shipped to United States.