Feature:1. Instant Warmth: Our pet self-warming pad provides immediate warmth for your furry friend, ensuring they stay cozy and comfortable even on the coldest days. No need for electricity or batteries - just lie on it. It's always ready to use.2. Noiseless Design: Made from ultra-soft fluffy fabric that provides a snuggly surface for napping. The self-warming mat will not make a crinkle sound by the completely noiseless aluminum foil film for enhanced sleeping comfort.3. Non-Slip Bottom: The anti-slip bottom is designed to enhance the friction at the bottom of the extra-warm pad, which can be well used for various types of floors, beds, sofas, crates, cars, and more, even for the outside lawn.4. Travel-Friendly: Lightweight and easily portable, making it great for travel. Whether you're going on a road trip, camping, or simply visiting friends and family, you can bring the comfort and warmth of home for your pet wherever you go.5. Versatile Usage: There are 4 sizes for you to choose from, our self-heating pad is suitable for a variety of pets, including dogs, cats, rabbits, and more. You can choose it according to the size of your furry friends to better fit.Specification:Color: Gray, Khaki (Optional)Size: S, M, L, XL (Optional)Package Size:S: 25 * 19 * 3cm/9.84 * 7.48 * 1.18inM: 27 * 26 * 3.5cm/10.63 * 10.24 * 1.38inL: 32 * 31 * 4cm/12.6 * 12.2 * 1.57inXL: 41 * 38 * 4.5cm/16.14 * 14.96 * 1.77inPackage Weight: 200g/7.05oz, 320g/11.29oz, 470g/16.58oz, 780g/27.51ozPackage List:1*Warm Pad