Vouchers were redeemed for actual physical tickets that we then used for park entry and FP redemption. (Can't recall the acronym--they are RFD cards or something? They are now plastic card tickets and not the former paper tickets. And one of those digital squares (I am so technical! Lol ) is on the back and that gets placed on the Mickey readers in the park.) My 4yo does her own and we just remind her "square to Mickey" and we wait for the green light.