●ENHANCED FEATURES: The Artemis Whelping Box kit includes large, high panels to ensure the safety of your pregnant dog and her pups. This product requires no tools and is easy to assemble using the plug panels and rods, giving you the freedom to extend the box if needed. ●SPECIAL DESIGN PIG RAIL: Maximize space in the box while delivering safety and support. The pig rail included with our product can withstand a strong bearing force while also providing up-down support and protection for your puppies. ●QUALITY HIGH-GRADE PLASTIC: Our whelping box is made with original, high-grade plastic that ensures durability and endurance. It is created with three different molding techniques, delivering a longer-lasting product that can be used time and again. ●EASY TO CLEAN: Each element of the Artemis Whelping Box is designed to be easily removed and cleaned. Simply rinse with water, or wipe clean using a cloth, and your item will be ready to use again in no time. ●WHELPING BOX FOR DOGS: This whelping box measures 59 x 59 inches ? large 26-inch height to offer protection for mother and puppies ? removable pig rail ? easy to clean panels and connectors ? complimentary, 4-layer pee pad included.