The Microwave pet warmer is sealed in a robust bite and claw resistant fabric and is wipe able, these fleece versions have a cover and these can be washed. This warmer is soft to touch and as such is more cosy and softer than some of the hard plastic designs. The Microwave Warmer is therapeutic and soothing. Microwaves in minutes stays warm for hours. Never needs filling or emptying. The thermal pack is covered with a removable washable “fleece style” cover. Ideal for use after surgery ideal for pets recovering in stainless steel cages a real comfort for hospitalised pets.