You can put the water bag into the refrigerator about 1-3 hours, suit for Thermal physical antifebrile, cold applying to relieve pain and pain caused by inflammation. you can put it into the fridge for a long time, use it when in needs
Blocks out light-works well even if you sleep on your side;Slip and eyeshade over your eyes and stuff earplugs into your ears after reading watching cellphone,computer or driving
Package Includes: 1 x Cute Eye Mask With Gel Eye Packs