Come and see our amazing products. The water bottle ring consists of a "D" aluminum hook + nylon sling + metal key ring + rubber bottle holder ring. About 16cm/ 6.3in, Rubber Ring Inner Diameter: 2.5cm/ 0.98in, Aluminum Hook Length: about 5.5cm/ 2.17in. Convenient and practical, portable and scratch-resistant design is suitable for hiking, camping, fishing and any other outdoor activities. Bottle holders can be used to securely attach water or other bottles to your bike, motorcycle, camping backpack or any other place you can imagine. The water bottle buckle is applied to the bottleneck from 1" to 1.25". The carabiner bottle holder can withstand 16 OZ water bottle. Customized logo is welcomed. A great idea for promotion gift. Pls confirm with us about the packing info, stock color and exact production time before placing your order