Why McDonald’s Cup Lids Have Rectangular Buttons Each round button on a McDonald’s cup lid is labeled with an abbreviation so workers and customers know which drink is which.

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Regarding durability, the Watch 8 offers an IP68 rating, a 5ATM water resistance, and complies with the MIL-STD-810H standard, making it fit for use in harsh environmental conditions. Similarly, the ...

While many McDonald’s diners already knew what the circular nubs are for, many were shocked to learn the purpose of the rectangular ones.

We finally know what those rectangular 'buttons' on McDonald's drink lids are used for.

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A man took to Instagram to share the clever hack, revealing there's a secret button on the window frame that can be adjusted to ensure no draughts get through.

Object Details Description This rectangular button has a black background with white text that reads: "The Future's Power Delivered Today. NEC RISC Solutions for Windows NT.” In the center of the ...