BlockSurfaces is a character blocking toolkit designed to streamline the creation of character base meshes before sculpting. It allows users to build foundational structures by manipulating linked objects and curves, providing an alternative to traditional manual blocking methods.

The system features tools for duplicating limbs, creating hierarchies, and posing characters without requiring formal rigging knowledge. It includes specific tools like BlockMuscle and FlatMuscle for simulating volume and membrane-like surfaces. Users can generate a unified final mesh ready for detailing in Blender's sculpt mode or external applications, with the ability to switch back to the blocking stage for non-destructive adjustments.