This poster was exclusive to those who were subscribed to Shonen Jump Plus in Japan and prepaid to get these posters. The event ran from 12/5/24 to 1/26/25, those who received it, It arrived in april. The poster is about 297mm x 420mm or about 11.7in x 16.5in.

The Original Site And Date Of This Poster Registration Event https://www.shonenjump.com/p/teiki/2024/zennsa_bokunoheroacademia_richposter02/