Brown & White Dog SnugglePuppie is perfect for that new puppy in your household or an older pet that misses a companion. Warm and snuggly with a "Real Feel" heartbeat. They are so comforting your new puppy will fall right to sleep. Cozy and calming for the older dog who misses a companion. They are low to the ground, serving as pillow and companion for your dog. In the bottom of each SnugglePuppie is an internal pocket where you can put the Heart Beat unit (it has an on/off switch) and a heat pack. The Heart Beat unit has two replaceable watch batteries included. The warmth is provided via a disposable heat pack (lasts for 20 hours) or you can put some dry rice in the included rice sock and heat it up in the microwave. Each SnugglePuppie is machine washable. Use with supervision so you can train your puppy not to chew up his new bed. Approximate size: 14" long, 12" wide, 5" tall. Heart Beat & Heater included, excellent for juvenile or adult pets and is machine washable.