In the summer weather, this scarf is a must-have tool for most dogs. The cooling collar can keep your pets cooler, make them feel more comfortable. A nice gift for your pet, show them your love and concern. Compact size, portable and lightweight, easy to carry. Features -Material: PVA -Size(S): 31.00X8.50X0.10cm/12.18X3.34X0.04in; Neck Circumference: 19-31cm/7.48-12.18in -Size( ): 42.00X12.00X0.10cm/16.51X4.72X0.04in; Neck Circumference: 31-42cm/12.18-16.51in -Size(L): 63.00X18.00X0.10cm/24.76X7.07X0.04in; Neck Circumference: 42-57cm/16.51-22.44in -The material is adopting the advanced cold technology, which mean it can resist heat and cooling. -It dose not contain chemicals, you can use it to cooling your pet with confidence. -Cool fabric can adjust temperature by absorbing heat, and the cool factor brings a cool comfort to pets. -The material is much lighter, breathable and comfortable to wear than ordinary fabric. -If put in water, wring dry, and then put in the freezer for 10 minutes before taking out, cooling effect is more obvious. -Multiple use occasions, you can take your dog out for a walk, exercise, mountain climbing, etc. Package list: 2 Cooling Collars