Happy holiday! SL3DOG is a sly watchdog. At first glance, it looks like an adorable puppy. Beware of first impressions… CHOMP-CHOMP-CHOMP! When it senses you, its cute little eyes and chubby neck all of a sudden transform into a ferocious, biting mouth. In a split second, it’s all over. It’s cute again! Hope you don’t repeat your same mistake… THIS IS MADE WITH ONLY ONE 31313 EV3 SET.