Rope specification explination

[sparkdogg6]

Hey guy's just bought my first non stretch rope, but I've got some questions about some of the specs.

Features
# Color: Blue
# Tangle free
# Solid 100% spectra core with a dyneema jacket.
# 2 ropes in 1
# Non-stretch 3/16" (4mm) mainline Unparalleled abrasion and U.V. resistance
# 4 section 75' Core mainline with three 5' removable extensions. Length: 75', 70', 65', 60'


Understand pretty much all of it I think, but what does it mean by 2 ropes in 1?

I might be confused on the 4 section part and the three 5' removable extensions. Clue me in??

Thanks,
Spark

[STANG KILLA SS]

youll have 4 pieces of rope, i have the same one.
theres a main 60' rope, then there are three 5' extensions you can add on for more length. they all have loops in the end for combinig them.

i run mine with no extentions for beginners.

[sparkdogg6]

So the reason they say two ropes in one is because??? Sounds like I get 5 ropes in one with 5 possible lengths 60' 65' 70' 75' 80'