This is a replacement inner stopper for fruit wine bottles. It is the "Inner Stopper" specifically for Aderia's low-profile & A-type storage bottles. Size: Mouth diameter 114mm, Height 19-8mm Weight: Approximately 25g Material: Polyethylene (Made in Japan) Heat resistance: 40 degrees Celsius Other: Do not boil or pour hot water into it (risk of deformation). * This is a surplus from a purchase. There was no packaging, so it will be sent in a clear pocket.