The Scruffs Thermal Mat is a self-heating mat, perfect for use during those chilly winter months. The Thermal Mat contains a foam layer backed with reflective foil; this reflects body heat back to your pet, helping to keep them warm. There is also a quilted hollow fibre layer that lies beneath a super soft fleece cover, this layer keeps warm air around your pet providing extra insulation. Features a non-slip base. Suitable for use in car, cage, house or on top of existing bed. Machine washable. Measurements:Small: 75 x 52cmMedium: 90 x 60cmLarge: 120 x 75cm**PLEASE NOTE: Should you need to return this item, please ensure that it is in the condition it arrived complete with tags and original packaging to be eligible for a full and immediate refund/exchange.