Material: Cotton Size (600ml bottles possible) Height: 18 cm Diameter: 6.5 cm Set of 2 pet bottle covers. Use them according to your mood. A 500ml pet bottle is used in the first photo. 600ml bottles are also possible. • Does not have cooling or warming functions. • Pet bottles inside are not included. • The color of the actual product may differ from the photos. • Sold only as a set. • Returns and exchanges are not accepted.