The Dynamax Band is a special item introduced in the Pokémon series, specifically in the games Pokémon Sword and Pokémon Shield. It allows Pokémon to undergo a transformation called Dynamaxing, which temporarily increases their size and power during battles. This feature enhances the strength of their moves and provides a unique visual experience. To use the Dynamax Band, trainers must be in specific locations, such as Gyms or during Max Raid Battles. The Dynamax effect lasts for three turns, after which the Pokémon returns to its normal size. This mechanic adds a strategic layer to battles, encouraging trainers to plan their moves carefully.