This soothing microwavable Earth Therapeutics Eye Mask is a wonnderful relaxation tool, and it's also effective for soothing dry tired eyes, for treating dry eye conditions, for aiding in meditation, for helping relieve headache, and for warming you on cool nights when you want some extra heat. The outter fleece has a velcro opening that allows you to pull out the little inner bag and heat it in your microwave. Then simply tuck the bag snuggly into the eye mask and prepare to relax your day away. Easy care. Delightful product. We ship FAST.