Black Epoxy. High quality construction that is reinforced with rounded corners. Pre-assembled and sets up in seconds. Convenient carry handle. Makes house-training easy and satisfies dogs training instincts. Minimizes barking and chewing. Designed for safety and security. Wire construction for maximum ventilation with a washable plastic pan. Large is recommended for dogs up to 70 pounds. Two doors at no extra cost. ADDITIONAL SHIPPING OS1 30# PLUS $5.00 HANDLING