Features: High strength PU rope, connected by aluminum alloy buckle, making the lanyard more durable. The belt buckle is designed with rubber for protection, it will not hurt you when it rebounds. The special neoprene fabric can float on the water if the lanyard falls out of your hand. This kind of flameout switch for key rope is used for urgent insurance. Retractable and flexible with rotating spring hooks to prevent tangles. Fit for most motorboats and outboard motors without battery and electric start. Simple installation, easy to mount on the engine stop switch for key. Specifications: Material:Plastic Size : As Picture Shown Insulation material: PU Core material: nylon rope Maximum outer diameter of wire: 5-6(MM) Length: 1.6(for M) Interface type: AC Temperature resistance: 75-105 Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings. Package includes: 1x Engine Stop Switch for Key Lanyard