A Chunky but sleek block heel, 6cm heel height. You can cover it, or use it as is. We often use it as a component, cover it with leather, and add our own top-lift rubber over what's existing. And put a nail at the end. 

Please look at the heel diagram to see the sizing of the heel.

Heel height at the back of heel = all 6cm. Front of heel is 4.6cm.