Cooling mat, set of 3. I am selling these because I don't use them as often anymore. The sizes are: Approximately 79cm wide, 55.5cm long Approximately 58cm wide, 40cm long Approximately 40cm wide, 30.5cm long I used these under the bed sheets. There are some stains and wear and tear from use. I think they can still be used. I used them for myself, but if you are concerned about the feel, how about using them for pets? Please understand that these are used items before purchasing. #Cooling mat #Blue #Bed #Sheets #Heatstroke prevention #Summer fatigue prevention