1. Size Selection: S diameter 40cm, suitable for pets weighing 00.9kg; M diameter 50cm, suitable for pets weighing 1.42.3kg; L diameter 60cm, suitable for pets weighing less than 11.3kg; XL diameter 80cm, suitable for pets weighing up to 25kg. The weight is for reference only; please measure your pet's body length when . 2. Comfortable Materials for Deep Sleep: Our dog mat is made of ultrasoft, cozy, and warm quality flannel. Both sides are usable, providing a longlasting dry environment for your cat or dog with ventilation, no odor, and restful comfort. Ensure your loyal companion enjoys a good night's sleep every day. 3. Multifunctional Pet Bed: This soft and flat pet bed mattress is suitable for dogs, rabbits, and cats, crafted from flannel and filled with cotton. The comfortable dog crate mat is ideal for supporting the spine of small dogs and is especially beneficial for senior or disabled pets. 4. Thoughtful Thickness: While keeping the bed design simple and the thickness moderate, it still delivers a cozy experience for your pet. Give your furry friends a comfortable spot to rest and recharge.