Photo Frame Art Frame, Postcard Size Approximately 20cm tall x 13cm wide x 1cm thick Color: Silver Because it's about 1cm thick, you can insert thicker cards. With photo frames, there's usually a gap, so black sponge is used to hold the card in place (see the last image). There's also a backing board on the back to prevent it from looking empty. I bought this but it didn't match my interior, so I've kept it unused. Please be sure to check my profile, the product description, and the images before purchasing. Thank you for your understanding. #meMEG