10 ft Kevlar Shock Cord (140 lb Strength)

When you order multiple lengths, one single long piece will be shipped.
This Kevlar thread has a 1mm diameter. The tensile strength for this shock cord is 140 lbs, sufficient for low power rocket.

How long should a Kevlar shock cord be?

As a rule of thumb, the shock cord should be 2-3 times as long as your rocket. This largely depends on which rocketry hobbyist you ask, there is no real consensus. For a model rocket that is 2 foot long, a Kevlar shock cord could be from 4 to 6 ft long.