diff --git a/STLs/Z_Idlers/[a]_z_tensioner_x4_9mm.stl b/STLs/Z_Idlers/[a]_z_tensioner_9mm_x4.stl
similarity index 100%
rename from STLs/Z_Idlers/[a]_z_tensioner_x4_9mm.stl
rename to STLs/Z_Idlers/[a]_z_tensioner_9mm_x4.stl