Our Bottle Buddies were the first plush toy line with a replaceable water bottle, and they're still going strong! After observing the extended length of time that dogs spend chewing on empty water bottles, we created a safer chew toy. Bottle buddies maintain the attractive crackling and crunching sound while eliminating the sharp, dangerous edges through the use of a special sleeve which encases the bottle in a durable inner liner. A Velcro closure makes replacing used water bottles fast and easy, ultimately extending the life of the toy. This toy comes with one recycled plastic bottle ready to go!