Specifications: Item:ESP32S 38pin Expansion Card Support :WiFi+Bluetooth Dual-Core ESP32-DevKitC-32 ESP-WROOM-32 Color:Purple Size:as shown Material: ABS+Metal Package Includes: 1PC ESP32S 38pin Expansion Card Note: Due to the problems of lighting effects and angles, there will be certain tolerances in the product, please understand. Please allow 0-2cm error due to manual measurment.