Clackers were popular, noisy 1970s skill toys featuring two heavy acrylic or glass balls on strings with a handle, designed to be swung up and down so they'd clack rhythmically, but early versions, often glass, shattered dangerously, leading to bans and switch to safer plastic, though the loud, addictive fun often resulted in bruised wrists or accidental hits.

Key Characteristics

Components: Two hard balls (early glass, later plastic) attached by a sturdy string to a central finger tab/handle.

Action: Players held the tab and moved their hand up and down, causing the balls to swing apart and then collide, creating a loud "clack" sound, sometimes above the hand too.

Sounds: Known for their ear-splitting, addictive clacking noise.

Materials: Initially heavy, often glass spheres, later switched to acrylic/plastic for safety after shattering became a problem.

Names: Also called Click-Clacks, Ker-Bangers, Knockers, or Latto-Latto (in SE Asia).