Bottle keychain with carabiner

Carabiner for nerthus 350 ml and 500 ml bottles; they can be used to securely attach the bottle to your bike, motorbike, camping backpack, or anywhere else you can think of; the bottle carabiner from nerthus can loop around your 350 ml and 500 ml neck for easy carrying. Made from durable rubber and lightweight aluminium. Please note that it is not compatible with the Chilly's 750 ml bottle.