The Casio G-Shock Black/F-green GA-2100 Replacement Bezel Resin Case Cover CasiOak is a high-quality and durable bezel designed specifically for Casio G-Shock watches. Made of sturdy resin material, this black bezel is compatible with models like GA-2100 and is a perfect replacement part for your watch. The sleek design and reliable construction make it an ideal choice for anyone looking to customize or repair their G-Shock watch.