25' ROLL OF 5/16" BLACK PREMIUM QUALITY EMGO BRAND FUEL LINE AS SHOWN IN SALE PICS . 

THIS IS THE THIN OUTSIDE DIAMETER OD FUEL LINE USED ON MANY MOTORCYCLES AND ATV,S. 

5/16"ID = 8.0MM ID . 2.7MM WALL THICKNESS . 13.50MM OD.

PT#3621.