Easy to attach: These replacement cords are designed for Salomon Quicklace systems, making them incredibly easy to attach and adjust. Simply thread the tip through the locking mechanism and tighten for a secure and comfortable fit. Durable quality: The shoelaces are made of a blend of spandex and high-quality ABS plastic, to withstand the rigors of running, hiking, and other outdoor activities. The material combination ensures long-lasting performance and resistance to wear. Secure and comfortable fit: The Quicklace system provides a precise and secure fit, allowing you to fine-tune the tension of your shoelaces for optimal comfort and support. The cords stay securely fast, without coming loose, even during intense activity. Specifications: Sizes: Length size S: 120 cm Length size M: 140 cm Material: Spandex + ABS Package includes: 2 pairs of shoelaces