pity that the advertiser does not specify in its description, because when in doubt I ordered a parallel front panel 9H to 9 while it offers the front and back for 11 (excluding postage)
after asking the protections (very easily) who hunt only the air bubbles, I have even added a silicone shell without worries.
the thickness remains discrete protections, and what a pleasure this tactile sensation (nothing to do with pastiche of films)
short, Z3 possessor, throw at you