We can guarantee your cats will love these caves. We unfortunately cannot guarantee they’ll ever want to come out of them! 100% wool felt, hand made in Nepal by women in the Le Sharma Nepalese Women Empowerment Campaign. Cats are naturally attracted to the lanolin in wool, which is reminiscent of a kitten’s mother. Wool fiber is hollow, which allows for excellent air circulation -- making the cave warm in the winter and cool in the summer. Approximately 19 inches in diameter by 11 inches tall, with a 7 inch diameter hole. Perfect for any cat up to 18 pounds. Available in red and white, white and black, gray and black, or gray and orange.