• silicone
• Kettle buckle--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,Hanging Buckle
• Silicone holder clip--convenient and practical, portable and scratch-resistant design is suitable for hiking, camping, fishing and any other outdoor activities,Hanging Buckle
• Water bottle hook buckle--stretchy silicone ring for easy install on you bottle,Hanging Buckle
• Hanging buckle--ideal for climbing, traveling, fishing, hiking, outing, exploring, walking or other outdoor activities,Water Bottle Carrier Clip
• Water bottle carrier clip--it can be used to securely attach water, soda or other bottles to your bike, tractor, motorcycle, belt, etc,Hanging Buckle