diff --git a/sets/curved.md b/sets/curved.md
index a86d9b7..5b0c523 100644
--- a/sets/curved.md
+++ b/sets/curved.md
@@ -6,6 +6,8 @@
 * 2 2x4 Curved (Curved base)
 * 2 4x2 Curved (Curved base)
 
+The intention of curved bases vs square bases is that sometimes you may want a curved wall inside a building vs on the exterior.  Square bases let you add curved walls to the interior of buildings, while curved bases look cleaner on the exterior.
+
 ## Cut-Stone
 
 * [Curved Curved Base](https://www.thingiverse.com/thing:1456837)