Just a word of warning about these presses. We bought the Freesub branded ones a couple of years back from Signzworld. After a month of being great, the screws holding the press together came loose and once they came loose, they kept doing so, making them virtually unusable. The screws, in my opinion, are not long enough as longer screws wouldn't keep coming loose.
While they worked though, they were great...much better having pressure at both ends of the mug rather than just in the middle.