Glossy 8x10.5- it is slightly larger than an 8x10- there is slightly more border on the photo so the actual image is less than 8x10 (I genuinely have to mention that as someone complained once).  

It has a Beckett authenticity hologram sticker on the front so it can be verified thru their page as authentic.  

This is an image of Jane as Elise from Somewhere In Time.