New and improved with higher, sturdier walls and easier removal of inner pack, our Pet Therapy Bed provides relaxing warmth or refreshing coolness for your pet. The inner pack is microwaveable for a heat pack to warm and soothe your pet on those cold winter nights. Or, it can be placed in the freezer for a cold pack to cool your best friend on hot summer days. Use as a regular plush bed anytime. Filled with 100%% natural ingredients. Machine washable bed. 18" diameter.