The durable<strong>UST Biner Bottle Carrier</strong> carabiner with key ring and bottle carrier is perfect for hiking? biking? camping? and shopping.<br> <br> Features:<br><ul><li>5mm anodized-aluminum carrier</li><li>Fits most bottles</li><li>To attach water bottle: Slide metal collar on black loop open? insert bottle neck and slide collar back over bottle to secure</li></ul><br> Specifications:<br><ul><li>Length: 4.5"</li><li>Weight: 11 grams</li><li>Colour: Black</li></ul>