2445 Features: -Activated by the weight of the dog or pressure. -Will maintain a temperature slightly lower than the ambient for up to three to four hours of constant use. -Automatically recharges itself as your pet moves. -Pad is ideal for beds, crates and travel. Product Type: -Crate Mat / Pad. Size: -Small. Shape: -Rectangle. Primary Colour: -Blues & Purples. Cooling Function: -Yes. Dimensions: Overall Length - Side to Side: -2.5 Centimetres. Overall Width: -40.5 Centimetres. Overall Height - Top to Bottom: -26 Centimetres. Overall Product Weight: -1.15 Kilogram. Activated by weight or pressure. Pad will be cooler than surrounding temperature for up to 3-4 hours of constant use. Automatically recharges itself as pet moves about. no electricity required. Ideal for pets bed, crate, kennel and car travel. Perfect for dog shows and dogs prone to overheating.