For those who appreciate the warmth of Aura Stone!! Great bargain! 1500 yen per piece. I bought them for 2280 yen each. They are incredibly warm. There's no price like this for a new set of two. Navy for Dad, pink for Mom to warm tired eyes and relax!! I've been using one, and I bought two, but my wife and mother wouldn't let me keep them, so I'm selling them. New, unopened. [Warmth from the Power of Underwater Volcanoes] In Japan, a country of volcanoes, the benefits of beauty and health methods that utilize the heat of bedrock, such as hot springs and rock bathing, are well-known. Even if you want to enjoy that natural and comfortable warmth every day, it's difficult both time-wise and economically. This product uses "Aura fiber" with heat-retaining properties, which is made by kneading plenty of "Aura Stone" born from underwater volcanoes. By wearing it, you can easily experience a comfortable, gentle warmth like that of warmed bedrock. [What is Aura Stone?] "Aura Stone" (scientific name: Hornblende Cummingtonite Porphyry) is a natural mineral stone born from underwater volcanoes in the deep sea. It is an igneous rock that was formed when magma from the Earth erupted from underwater volcanoes hundreds of millions of years ago and was rapidly cooled by seawater containing various minerals. It contains ancient minerals such as magnesium oxide, silica, alumina, ferric oxide, and calcium oxide in an exquisite balance. At first glance, it looks like any other stone, but you can feel the warmth when you touch it. Warming and relaxing eye mask Product size (approx.) 20 x 10cm (excluding the elastic part) Product weight (approx.) 9g Individual packaging size (approx.) 25 x 16 x 4cm Material: Outer fabric/100% polyester Filling/100% polyester (contains natural mineral stone) Piping/65% polyester, 35% rayon Elastic part/70% nylon, 30% polyurethane Fastener/Silicone Washable by hand Made in Japan