Plastic Lids On Paper Cups
Many places have plastic lids on their paper cups, and it’s not just to avoid spilling. This plastic lid can also double up as a coaster. The ridges on the lids are designed to hug the base of the disposable cup.
Plastic Lids On Paper Cups
Colored Square At The End Of A Toothpaste Tube
You may have noticed that a small colored block at the end of your toothpaste tube. These blocks are called eye marks and are there to help the machine know where to cut and fold the tubes so they’re not all attached to one another.
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Colored Square At The End Of A Toothpaste Tube
