In the photo in the ad the helmet is assembled with a liner - this does not happen. I received two pieces, an outer case and an inner liner with a plastic bag around it that had some graphics printed on it to show how it was supposed to be put together. After examining the graphics and figuring out that the tabs on the liner should snap into the slots on the case, and after a lot of pushing (and even with a rubber mallet), I found that the tabs are too big for the slots. ! I have read other reviews claiming they are easy to assemble - for me they are not! My conclusion is that they sent the wrong lining for this bowl - looks like a silly mistake (I also wrote a review on the seller). Those who don't like rolling the dice to get a matching helmet should get an Amston hard hat instead. It comes fully assembled for a few bucks more - well worth it to avoid the hassle of returning this useless junk for $12.