![affordance - What is the reason for Concave round buttons in Elevators - User Experience Stack Exchange affordance - What is the reason for Concave round buttons in Elevators - User Experience Stack Exchange](https://i.stack.imgur.com/ftLeO.jpg)
affordance - What is the reason for Concave round buttons in Elevators - User Experience Stack Exchange
![Vinz! on X: "@EmteCoke Nice, modded mine with custom concave Sanwa buttons. https://t.co/fMi683OSff" / X Vinz! on X: "@EmteCoke Nice, modded mine with custom concave Sanwa buttons. https://t.co/fMi683OSff" / X](https://pbs.twimg.com/media/FLZviHNXMAA0OIL.jpg:large)
Vinz! on X: "@EmteCoke Nice, modded mine with custom concave Sanwa buttons. https://t.co/fMi683OSff" / X
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Concave Buttons Stock Illustrations – 87 Concave Buttons Stock Illustrations, Vectors & Clipart - Dreamstime
![20 Pcs 4-Holes Buttons Narrow Edge Micro Concave Resin Spray Paint Buttons Simple Wool Coat Windbreaker Button-Blue,23mm : Amazon.co.uk: Home & Kitchen 20 Pcs 4-Holes Buttons Narrow Edge Micro Concave Resin Spray Paint Buttons Simple Wool Coat Windbreaker Button-Blue,23mm : Amazon.co.uk: Home & Kitchen](https://m.media-amazon.com/images/I/51hPsPaQi2L._AC_UF894,1000_QL80_.jpg)