PROFESSIONAL QUALITY: The Petzl AIRLINE - throw-line - engineered for professional accessories applications. CERTIFIED SAFETY: Petzl has 50+ years of expertise in professional safety equipment trusted by workers worldwide. SPECIFICATIONS: 300 m - designed for optimal performance and user comfort. LIGHTWEIGHT: Weighing only 1.47 lb, balancing durability with ease of use. PETZL COMPATIBLE: Throw-line - designed to integrate seamlessly with Petzl equipment for enhanced functionality.