diff --git a/README.md b/README.md
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@@ -3,6 +3,8 @@ Badges for the HackLeman village at CCC Camp 2019
 Add LEDs, 2xAA batteries and a holder, 5x 100 ohm Pots for current regulation and off you go!
 Licensed under the CERN OHL V1.2
 
+Overall dimensions of the badge are 10cms by about 5cms. 
+
 Use with LED's up to 3V. Each panel (7 rows, 5 columns of LED) has it's own potentiometer to regulate current, allowing you to mix and match the LED's used between panels. 
 
 Front of the badge - note that you should only mount the LEDs you want to light up (saves time, money, fiddley-ness).Note the 10 pin DIP is actually a set of DIP switches, and the 3 legged through hole potentiometers are missing in the 3D model.