Case Module ESP8266 ESP-01 Relay

The Case ESP-01 relay is composed of a rectangular-shaped box divided into two parts with the following dimensions:

Inner side ESP-01 Relay Plate
Length: 26.50mm
Width: 38.50mm
Height: 18mm

Inner side Cell Source Board (Optional)

or 100-240V AC to 5V DC Converter Module

Length: 26.50mm
Width: 60mm
Height: 18mm

Case Assembly
https://usetech3d.com/assembly-of-the-esp-01-relay-case-with-fitting-for-5v-source-board/