A bombilla is a filtered straw for drinking yerba mate. It means "small pump" in Spanish. Indigenous peoples such as the Guaraní used to make straws by cutting thin bamboo or reed stems. The Spanish began manufacturing them with silver, which was abundant in mines. Today, in addition to silver, there are many types including metal products made of nickel silver (called alpaca in Spanish) and stainless steel. They are about 15-20 cm in total length and have a tube thickness of less than 1 cm, excluding decorations. Material: Nickel silver (Alpaca steel) Size: Approximately 19 cm To cool the hot yerba mate as it is drunk,工夫 (kufū - ingenuity/effort) is made by attaching a metal decoration in the center of the straw part or by adding grooves to the straw surface to increase the surface area and facilitate heat dissipation. Please understand that this is an overseas product and purchase after careful examination.