Unless you have individual park tickets (as opposed to a KTTW card), you won't be able to fold them...they are made like CCs. And if you accidentally bend one, tell your hotel front desk right away. Don't go to a park and hope it works...it won't! DH sat on his last year and bent it and we almost missed our dinner ADRs while Epcot staff had to reissue us a one day ticket so we could get in.