The Muscle Band (Japanese: ちからのハチマキ Power Headband) is a type of held item introduced in Generation IV. It is an in-battle effect item that slightly boosts the power of physical moves.
Boosts the power of the holder's physical moves by 10%.
Muscle Band was introduced as an Item card in the Pokémon Trading Card Game during the English XY Series (the Japanese XY Era) in the XY expansion.
The attacks of the Pokémon Muscle Band is attached to do 20 more damage to the opponent's Active Pokémon (before applying Weakness and Resistance).
Additionally, a Muscle Band appeared in the artwork of Pikachu (BW-P Promo 120).