Give your mama dog and her pups a safe, clean, and comfortable space with this durable plastic dog whelping box, sized 73.43 × 38.19 × 19.69 in for medium breeds. Made from high-quality Pvc, it s waterproof, rust-resistant, and easy to wipe down, helping you maintain a hygienic birthing and nursing area. The included large 44.1 × 44.1 in non-slip waterproof pad protects floors from leaks and is machine washable and reusable. Clear laser-etched leg markings make assembly quick and error-free, while the adjustable-height door offers flexible access and security as puppies grow. Designed for indoor use, this whelping pen provides a stable, comfortable environment for every stage from birth to early playtime.