This is sugar packed in a fish-shaped bag.
Not candy or snack. Just normal sugar. 79g in it.
It is a gift when you have something to celebrate in Japan, especially wedding.
The fish, a sea bream, is considered as good luck.
A 5 Japanese yen coin comes with. 5 yen is also taken as pleasant image because it sounds like "connection" or "link".
Please kindly note it might take 4~6 days to obtain.