Summer Non-slip Pet Cooling Mat (Friends)Did you know that pets have a higher body temperature than humans? Cooling mats are an essential item for keeping your pet cool in the summer. Anti slip bottom Material: Rayon, cooler than other materials (such as cotton) Pillowcases can be purchased separately. Size M holds a 500ml water bottle, and size L holds a 2L water bottle. You can put the bottle in the refrigerator to keep your pet's pillow cool. Made in South Korea