This Autographed Vertical Dunking 16x20 Framed Photo has been Personally Signed by Shaquille O'Neal of the Los Angeles Lakers. This item is 100% Authentic to include a Certificate of Authenticity (COA) / hologram by JSA. The authenticity can be verified on JSA website. This item has been professionally framed to overall dimensions of approximately 23.5 x 27.5 inches.