Striped Lollipop Hammer is one of the boosters in Candy Crush Jelly Saga that is unlocked at level 22. It is activated in-game by clicking the corresponding button. Clicking the same button again will deactivate it.
This booster works similarly to the two striped candy combination which also makes a blast.
Unlike Color Bomb Lollipop Hammer, this booster does not have any effects when smashing it with special candies.