[Used] Good Condition This is a set of diving equipment, including a snorkel and mask. It's a "PRO Series ULTRA SERIES" product, featuring a silicone mouthpiece and a purge valve for efficient water drainage. Shopping information is as follows: Product Type: Snorkel and mask set, used for diving and snorkeling. Features: Dry top function (prevents water entry), internal purge valve for efficient drainage, single-window design for optimal visibility, high-quality silicone mouthpiece, and efficient drainage purge valve. Series Name: PRO Series ULTRA SERIES. Material: The mouthpiece is made of silicone.