Product information: Outer material: PVC Inner material: gel Available in 5 Sizes: S(40*30cm), M(50*40cm), L(65*50cm), XL(90*50cm), XXL(100*60cm) Contents in Box: 1 x Pet Cooling Pad More information about product: There is an easier way for your Dog or Cat to get Cool! The pad is activated by your dog's weight. Every area that their body comes into contact with will be cooled because the pad absorbs the body heat to cool him or her down. Cool gel mat absorbs your body heat and provides naturally cool relief. Gently brings down Body Temperature by Absorbing Body Heat! Automatically cools when an animal lies on it and instantly reduces body temperature. Safe for Your Pets No freezing required No electricity- no wires NON TOXIC Use indoors, outdoors and when travelling Automatically cools when lies on it