diff --git a/README.md b/README.md
index aee2cdd..b314957 100644
--- a/README.md
+++ b/README.md
@@ -26,8 +26,14 @@ Timing
 - Number edge cutting ~3 min
 - Outline cutting \<1 min
 
-## Parts
+## Requirements
+For improved performance following are nice to have.
+
+### Clockwork
 Quartz movement with hands acquired from [Dan's Clock Shop](https://www.dansclockshop.com/product/id/141/24-hour-clock-movements/new-quartz-24-hour-clock-movement-mechanism-motor-130mm-black-metal-hands-for-24hr-dials) for £10GBP plus shipping and import taxes (<30€ in total).
 
+### Typeface
+Chose [Isonorm](https://www.fontshop.com/families/linotype-isonorm) typeface for numbers out of selection of typefaces ([Decimal](https://www.typography.com/fonts/decimal/how-to-use), [Interstate](https://fontsinuse.com/typefaces/2247/interstate)) due to cleanliness, somewhat fixed width appearance and "objectivity". Of course you are fee to choose a typeface of your preference.
+
 ## License
 [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/) license.