Self-heating pet bed: This mat can effectively keep your pet warm in cold weather. It is ideal for cats, rabbits, puppies, aging and arthritic pets. Five-layer thermal insulation design: Our self-heating pad is filled with 5-layer structure and 3-layer heating insulation material, which is better than those on the market. Safety Guarantee: With no batteries or cables, this self-heating pet blanket reflects and retains your pet"s own heat, keeping them warm and comfortable. This mat is perfect for use in sofas, floors, dog beds, cat habitats, pet cages and outdoor cat houses. Multi-size cushions are easy to clean, machine washable and hand washable. Color: gray, brown, dark blue (optional) Size: S: Approx. 40 x 50 cm / 15.7 x 19.6 inches M: Approx. 48 x 70 cm / 19 x 27.5 inches L: Approx. 58 x 88 cm / 22.8 x 34.6 inches XL: Approx. 115 x 72 cm / 45.27 x 28.34 inches Material: The first layer: super soft fleece Second layer: soft thermal insulation cotton The third layer: warm and patiently grasp the felt The fourth layer: thermal insulation material Fifth layer: wear-resistant non-slip oxford cloth Upgrade: Adopt upgraded mute aluminum foil to reduce noise. Applicable to: cats, dogs, rabbits and other pets, can be placed on the ground, pet kennels, sofas, cars, etc. Packing List:1 x Heated Pet Mat