This automatic life jacket accessory features a water-soluble bobbin and a manual or automatic activation device. Designed for convenience and reliability, it ensures your life jacket inflates quickly in emergencies. The compact design makes it easy to carry and install, providing peace of mind during water activities. Features -Color:Yellow -Material:Plastic -Size:1.80X1.80X1.00cm/0.71X0.71X0.39in -Automatic trigger mechanism: ensures safety by automatically activating the life jacket in emergency situations, providing peace of mind during water activities - bobbin: convenient and easy to use, the bobbin dissolves quickly to trigger inflation, making it reliable in various water conditions -Manual and automatic activation: offers flexibility with both manual and automatic activation options, allowing users to choose based on their preference and situation -Compact trigger design: the trigger mechanism is designed to be compact and efficient, ensuring quick and reliable activation of the lifesaving device -Suitable for life jackets: specifically designed to be compatible with a wide range of life jackets, ensuring versatility and broad usabilityPackage list: 6 x life jacket accessories