The 20-foot string trimmer and edger line replacement is made from copolymer nylon resin and synthetic material designed with an oval aerodynamic shape. This design increases edging life up to 25-percent compared to normal use conditions. This resin line is softer allowing for the line to stretch and cushion on impact with hard surfaces. The line is 0.08 x 20-feet and easily installs into the no-bump trimmers. Also Include one new cap.