There are a couple methods for dimpling
a barrel I will cover here.
When assessing a newborn, the gluteal folds should be separated to look for any dimpling
. Small "sacral dimples" that overlie the coccyx and have well-visualized, intact bases are considered benign normal variants and do not require further work-up.
But the dimpling
was created by chance, as golfers found that old battered balls travelled further than new ones.
 These indicators include a submucosal defect of the hard palate, a short or thin velum, anterior dimpling
of the velum, midline translucency of the velum, poor velar elevation, and the presence of a bifid uvula.
It is manufactured using advanced dual dimple technology, a technique that imparts an imposed dimpling
on individual filter pleats using spun-bonded polyester media.