Why Do Milk Jugs Have Those Inverted Circles?

Why Do Milk Jugs Have Those Inverted Circles?

Why Do Milk Jugs Have Those Inverted Circles?

The concave circles built into the sides of plastic milk jugs are an important part of their design.

Why Do Milk Jugs Have Those Inverted Circles?

Philips Avent Natural Baby Bottle Medium Flow Nipple 3+ Months, Clear, 2pk

Why Do Milk Jugs Have Those Inverted Circles?

Why Do Milk Jugs Have Those Inverted Circles?

Why Do Milk Jugs Have Those Inverted Circles?

Amazing Secrets Hidden In Everyday Things - Part 4

Why Do Milk Jugs Have Those Inverted Circles?

What is this concave circle on the side of my milk jug? There's only one, there isn't an opposite shape on the other side.. : r/whatisthisthing

Why Do Milk Jugs Have Those Inverted Circles?

Glass Manufacturers' Marks on Bottles ~ Page Two

Why Do Milk Jugs Have Those Inverted Circles?

Vintage 1923 To 1925 -- 12 OZ -- Thatcher Manufacturing Glass Company-- EMB Milk

Why Do Milk Jugs Have Those Inverted Circles?

What is this concave circle on the side of my milk jug? There's only one, there isn't an opposite shape on the other side.. : r/whatisthisthing

Why Do Milk Jugs Have Those Inverted Circles?

How to Hand Express Breast Milk: Step-by-Step Instructions

Why Do Milk Jugs Have Those Inverted Circles?

Foods, Free Full-Text

Why Do Milk Jugs Have Those Inverted Circles?

Tethered particle analysis of supercoiled circular DNA using peptide nucleic acid handles

Why Do Milk Jugs Have Those Inverted Circles?

SoftShells Inverted Nipple Kit – Natural Resources: Pregnancy + Parenting

Why Do Milk Jugs Have Those Inverted Circles?

MetLink - Royal Meteorological Society Turn Water Upside Down