These stackable headers are made to work with the SparkFun ESP32 Thing Plus to connect to shield with a Feather footprint. This set includes one 12-pin and one 16-pin header; the pins are spaced by 0.1". Each set of headers allows you to stack Feather shields on top of your ESP32 Thing Plus or plug them into a solderless breadboard. Note: Soldering is required for functionality and physical attachment to a Feather shield or board. https://elecena.pl/product/15592298/feather-stackable-header-set 2019-03-29 https://elecena.pl/product/15592298/feather-stackable-header-set 2022-02-21 https://elecena.pl/product/15592298/feather-stackable-header-set 2025-04-12 https://elecena.pl/product/15592298/feather-stackable-header-set 2025-04-14 https://elecena.pl/product/15592298/feather-stackable-header-set 2025-06-04 https://elecena.pl/product/15592298/feather-stackable-header-set 2025-06-07