Dumbbell Twins

Dumbbell Twins are a Rare Pet accompanying Muscle Cookie that was released on September 26th, 2016. It creates a Giant Jelly which also either heals the Cookie or acts as a Magnet Jelly.

Story
''These twins are the go to Pet to strengthen just about anything, including Cookies! A taste of its Giant Jelly will make you strong and invincible to any obstacles. Feeling strong already?''

Trivia

 * Dumbbell Twins' internal name is "pet0021".