Red Hair Pieces

The Red Hair Pieces, often called Odango Covers or Odango Shields by fans, appear in Sailor Moon's hair when she transforms, decorating her odango.

Sailor Chibi Moon also has a pair of red hair pieces that are also able to perform the supersonic wave attack.

Abilities
Other than creating Supersonic waves, the pieces allowed Sailor Moon to hear that Naru Osaka was in danger from a distance and when she cried they released supersonic waves. However, the ability to hear people from a distance appeared only once, and it was never used or referenced again.

Appearance
Sailor Moon’s red hair pieces were red round pieces on her odangos/buns with a white outline.

Sailor Chibi Moon’s red hair pieces were like Sailor Moon’s but smaller and has two extra pieces on the top that may represent bunny ears.

Trivia

 * In her first design, Sailor Stellar adorned a pair of hair pieces, albeit blue, over her odango.