Product Details: Brand: ROCKBROS Series: 2017-11B Material: Aluminum + PC (Polycarbonate) Color: Black Weight: approx. 33g Dimensions: approx. 14 x 7.5 cm Features: Good Quality: Made from aluminum alloy, it is durable, wear-resistant, and corrosion-resistant. Can be used in harsh outdoor environments, extending its lifespan. Polished Edges: Protects your bottle from scratches. Lightweight: This bottle cage weighs only about 33g and won't add significant load during your ride. Multi-Functional: Suitable for a water bottle or a round tool bag. Warranty: 2 years