Pet bottle holder Drink holder Use it by placing the mouth of the pet bottle in the round part of the holder. It has a hook, so you can hang it on a backpack or bag for carrying. I bought two in different colors, and this one is unused and has been stored at home. The rubber part of the holder is strong, and it takes a little force to attach the pet bottle. However, the pet bottle will not fall out after it is attached. It's compact, so it won't take up much space in your bag, which is a good thing. There are scratches on the round part that were there from the time of purchase, but they do not impair the function of the holder. Why not use it for walking, mountain climbing, camping, etc.? #MountainClimbing #Trekking #Camping #Walking #PetBottleHolder #DrinkHolder