Specification: Product Size: S: about 30x40cm/11.81x15.75 inches, it is recommended to add 500g-600g of water, suitable for pets under 4kg and about 40cm/15.75 inches in length M: about 40x50cm/15.75x19.69 inches, it is recommended to add 900g-1100g of water, suitable for pets under 10kg and about 50cm/19.69 inches in length L: about 50x60cm/19.69x23.62 inches, it is recommended to add 1200g-1500g of water, suitable for pets under 15kg and about 60cm/23.62 inches in length XL: about 60x90cm/23.62x35.43 inches, it is recommended to add 2100g-2500g of water, suitable for pets under 35kg and about 90cm/35.43 inches in length Product Material: PVC Product Usage: pet cooling pad/seat cushion/sofa cushion/car seat cushion, etc. Instructions: 1. Unscrew the white cover and take out the plug 2. Aim the water filling port at the faucet and fill it with water 3. After filling the water, press the plug and tighten it. 4. Finally, pick up the ice pad and shake it a few times to fully react with the dry ice and water to form a gel, which can then be used. Product List: 1* Pet Cooling Mat