Coverage for Internal and External Lines on Many Types of Vehicles. The set includes four stoppers to seal lines in automotive flare type steel brake lines, power steering and transmission cooler lines. Two line clamp pliers 6-1/4" and 7-1/4" in length seal flexible brake lines, fuel and vacuum lines, with smooth rounded edges that will not damage internal hose reinforcement. Made of light weight and highly visible, fluid resistant nylon reinforced plastic. Eight stoppers and four caps are made of highly visible, flexible plastic and used for plugging vacuum and fuel lines during engine tune-ups. Stepped design can be used for both internal and external stoppage. Stopper sizes from 1/8" through 1/2". Caps are 5/8" and 3/4" for larger lines. Applications: The Master Line Stopper Set provides coverage for many internal and external lines found on vehicles. Four different size stoppers for automotive flare type steel brake lines, power steering and transmission cooler lines. Two line clamp pliers for flexible brake, fuel and vacuum lines. Twelve sizes of stoppers and caps work on internal and external lines. 67030 Line Stoppers- 1/8" 1 pc 67040 Line Stoppers- 3/16'-1/4" 1 pc 67050 Line Stoppers- 5/16'-3/8" 1 pc 67060 Line Stoppers- 7/16'-1/2" 1 pc 67070 Line Stoppers Caps- 5/8" 1 pc 67080 Line Stoppers Caps- 3/4" 1 pc 67090 Brake & Fuel Line Clamp 6 1/4" 67100 Brake & Fuel Line Clamp 7 1/4" 67110 Steel Line Stopper 1/4" 67120 Steel Line Stopper 5/16" 67130 Steel Line Stopper 3/8" Banjo 67140 Steel Line Stopper 3/8"