The LALIZAS 20190 Carbon Dioxide (CO2) Cylinder 33gr with Auto re-arm kit is specifically designed for use with inflatable lifejackets. This high-quality CO2 cylinder is essential for keeping your inflatable lifejacket in proper working condition. The 33 gram size is suitable for use with the JS1 inflatable lifejacket model. The auto re-arm kit ensures that your lifejacket is always ready for use, providing peace of mind in case of emergencies at sea. Trust LALIZAS for all your safety equipment needs, and ensure that your inflatable lifejacket is always in optimal condition with this CO2 cylinder and re-arm kit.