diff --git a/Hardware-design-files.md b/Hardware-design-files.md
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@@ -19,10 +19,13 @@ I can wholeheartedly recommend their services, very good quality, and most impor
 ### Special parts for "green board" build
 **Discrete single pin sockets**: eg: RS 718-5284. (low profile)  
 ![HolTiteSocket](uploads/fc0703aa92c3d3cc559e8b56cd7e57ac/HolTiteSocket.jpg)  
-These are used allow the OLED to be removed for access to the battery terminals should it need to be replaced (optional).  
-The PCB holes are very large to accommodate these sockets. Should you choose to do so, the OLED could be soldered and later easily de-soldered as an alternative.  
+These sockets are used as the maintain a very low profile compared to the usual 0.1" strip header socket.  
+They are used in two locations, OLED display & debug port.
 
-These sockets are also used to allow a FTDI232 USB adapter to be plugged in for flashing and debug purposes. (ESSENTIAL!).
+1. The OLED can be removed for ready access to the battery terminals should it need to be replaced (optional).  
+As the PCB holes are very large to accommodate these sockets, should you choose to do so, the OLED could be directly soldered and later easily de-soldered as an alternative. 
+
+2. These sockets are also used to allow a FTDI232 USB adapter to be plugged in for flashing and debug purposes. (ESSENTIAL!).
 
 **M3 Nylon screws and nuts** to secure OLED module.