HELIOS (Helios) is a glass vacuum flask pot born in Germany in 1909. It is a classic popular product with the best ease of use within a simple design. Size approx: W90×D100×H202mm Body weight: approx. 295g Materials: Polypropylene, soda-lime glass, silicone (gasket) Country of origin: Germany Capacity: approx. 250ml *Do not use with carbonated drinks or ice. Although not noticeable, it appears slightly bluish around the spout, but it has been like this since purchase. I have included a photo. It has been used a few times mainly with water. Thank you to those who do not mind. 〈About the Flakes Phenomenon〉 Very rarely, sparkling substances may float on the surface of water poured from the pot. This is called the flakes phenomenon, and it occurs when water contains a high concentration of magnesium, etc., which adheres to the glass and then peels off to float on the water surface. It is harmless.