The Hard Bottom Car Seat Extender offers a supportive and uniquely designed back seat space for dogs, ensuring a warm, safe, and comfortable place for them to sleep, relax, or travel. This durable dog seat cover fits any car, supports up to 375 lbs/170 kg, and provides full back seat protection from scratches, bodily fluids, and dirt. With reinforced sides and a sturdy bottom, it enhances safety by preventing dogs from falling during sudden stops. Its extendable folding design and adjustable straps make it versatile for any size car or truck.