They put Liquiglide on the outside of the bottle.

INVENTIONS

Please wait while the activity loads.
If this activity does not load, try refreshing your browser. Also, this page requires javascript. Please visit using a browser with javascript enabled.

If loading fails, click here to try again

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

A	True
B	False
C	Does not say
D	None of the above

Explanation:

There is 1 question to complete.

GENERAL KNOWLEDGE

GK

INVENTIONS