Description Constructed from a 80/20 Polyamide-Carbon composite material injected into a high-strength matrix ensuring resilience and long-life Trail Bottle Cage has been developed with a minimalist design yet does not compromise securely holding your bottle whether on-road or off Includes corrosion-free stainless steel bolts Embedded magnets for holding spare chain master links TECH SPECSmaterialPolymide-Carboncolorwhiteweight34g