This is White Dacron repair tape 6' long the picture shows the roll that I cut off for custom 6' sizes. The Tape is 2" wide and can be sold in any length in 6' foot incrimintes.If you need 18' just order 3 units and you shall receive a piece 18' feet long.This tape is great for sail repair, reinforcements and protection. The tape has a very aggresive adhesive backing that is perfect for those quick sail repairs, no needle or thread just peal off the backing to the damaged area and apply . Easy to use just clean off and dry the area to be repaired and press the tape firmly to the area if you use a rolling pin or dowel even better. Save on sending you sails out to be repaired do it yourself for a fraction of the cost. Thank You Patrick Kevane from  Kevane Sails one of the largest sellers of recreational sails for the Sunfish, Phantom, Sailfish, Scorpians Optimist, Pico, Topper and Lasers 

Look on my other items for sale

4" Sail repair Tape

6" Sail Repair Tape

Sail Repair Kit

Rigging Tape

Sunfish Sail Rings