These stark and elegant Black Windowed Lamp R4 Keycaps are made of opaque black plastic with a small cutout in the south-center edge that wraps around the top and bottom. The cut-out has a clear plastic window to allow an LED installed under the switch to glow through. These are somewhat rare to find, but they have a little bit of the je ne sais quoi to your keeb or macropad build. Snaps onto any Cherry MX or compatible switch. It's R4 profile so will work nicely as a stand-alone key or at the top row of your keyboards. Note: This product is a single keycap, and key switches are not included! Technical Details * Keycap dimensions: 18mm x 18mm x 9.7mm https://elecena.pl/product/22722931/black-windowed-lamp-r4-keycap-for-mx-compatible-switches 2023-03-07 https://elecena.pl/product/22722931/black-windowed-lamp-r4-keycap-for-mx-compatible-switches 2023-12-27 https://elecena.pl/product/22722931/black-windowed-lamp-r4-keycap-for-mx-compatible-switches 2024-09-19 https://elecena.pl/product/22722931/black-windowed-lamp-r4-keycap-for-mx-compatible-switches 2024-11-29 https://elecena.pl/product/22722931/black-windowed-lamp-r4-keycap-for-mx-compatible-switches 2024-11-30 https://elecena.pl/product/22722931/black-windowed-lamp-r4-keycap-for-mx-compatible-switches 2025-04-10 https://elecena.pl/product/22722931/black-windowed-lamp-r4-keycap-for-mx-compatible-switches 2025-11-28 https://elecena.pl/product/22722931/black-windowed-lamp-r4-keycap-for-mx-compatible-switches 2025-11-29