Yo-yo

The yo-yo is Ladybug's weapon.

Appearance
Ladybug's yo-yo is red with five black dots on each side. She usually wears it around her hips when she's not using it. The length of the string for the yo-yo is infinite, and how long it gets depends on willpower.

Abilities
The yo-yo has many functions, including a weapon, a grappling hook, a phone, and a catcher to revert akumas back to normal butterflies.

Trivia

 * In concept art and test animation in the 2014 licensing video, the yo-yo appears to have more abilities, like being able to split in half to become a staff, generating a wing-like shield, and exploding like a bomb. If Ladybug will have these abilities in the show, or if these are done with the yo-yo or something else, has yet to be found yet.