My beautiful Bride calls this Pla Grim Kai Tao, or fish and turtle eggs; I would be interested in learning the story behind this. At least, roaming street vendors in Thailand once offered the contents of two pots they would carry on one shoulder, one sweet with brown sugar and the chandol (the rice flour "worms"), another salty with coconut cream and the chandol; my beautiful Bride remembers stopping them, and that her mother liked this dish; this is now disappearing more and more. Another place to find it is the open markets, too you could find this dish in certain stores that carry traditional Thai food. This is S&P's version of that dish, S&P being a well-known and respected brand, so it should taste good.
And it did, the worms are made of rice flour, both glutinous and not, and as you can see, it does not look at all like the packaging offers.