This CoolDog mat is about the size of a place mat. The outer case is durable and of good quality. However, the ice pack that goes inside is flimsy and not durable. After just three rounds in the freezer, mine split in half and one of the ice cube sections is misshapen and looks ready to burst. It's too bad this company didn't put as much thought into the ice packs as they did the exterior. Also, the ice has pretty much melted within 15 minutes, so you don't get very much cool for your buck. For twenty-five dollars, this should be a much better product, especially since you'd need to buy three for a dog of larger size. The plastic material housing the water solution needs to be far more durable. It needs to be made of something that can withstand being frozen again and again without breaking or rupturing since continued use depends on refreezing. I recommend saving your money for now and waiting until there is a better ice pack.