Reusable multi-section straw

A straw is disclosed including: a first tubular section having a first hol-low tubular body, a first open end, and a second open end, wherein the second open end has a bore greater than or equal to a bore of the first open end; and a second tubular section having a second hollow tubular body, a third open end, and a fourth open end, wherein the third open end has an outer diameter smaller than an inner diameter of the second open end, and an outer surface dimensioned with an appearance matching to an inner surface of the second open end; wherein when the third open end is inserted into the second open end, the second tubular section is partially inserted into the first tubular section and detachably engaged with the first tubular section.