1Durable Plastic Material: Made from premium plastic, these boat kill stop switch keys are waterproof, wear proof, impact resistant, with a long service life. 2Set of Nine: When you're unsure of the specific type of key you need, this set of nine keys is designed to better cater to your varying requirements, practical to use. 3Compatible with Safety Lanyard: Each key is equipped with a key ring, allowing for easy attachment to a kill switch lanyard. It ensures convenient installation and effortless use. 4Perfect Replacement: If you have lost or broken your kill switch key and cannot start the engine, this kit comes to your rescue by providing a suitable replacement. 5Universal Compatibility: This outboard kill stop switch key set is universally compatible, suitable for various boat types. It is compact, lightweight, and easy to carry. Item Type: Boat Kill Stop Switch Keys Material: Plastic Weight: Approx. 42g/1.5oz 9 x Keys 9 x Key Rings