The Warm Paws Pet Therapy Pack is a microwaveable or freezable pad that can be used alone or as an insert for your existing Pet Bed to provide relaxing warmth or refreshing coolness for your pet. Microwave to warm your pet's bed on those cold winter nights or to sooth the aches and pains of your arthritic pet. Freeze it to cool your pet's bed on those hot summer days or to reduce swelling of an injury. Soothing Lavender scent. Water resistant, machine washable cover. 20" x 30"