Sturdy Construction: Steel line Stopper Kit is crafted from sturdy PP and metal materials, this tool ensures long term durability and reliability, making it a dependable choice for automotive maintenanceVersatile Compatibility: Brake Fluid Line Clamp Tool designed to for 5/16", 3/8", and 1/2" hose sizes, these clamps are suitable for a wide range of applications including brake hoses, air conditioning hoses, and power steering hosesFunctional Design: The automatic line clamp effectively seals metal lines after disconnection, providing a secure fix on hoses during repairs to prevent leaksComprehensive Set: This set includes 4x fuel line plug kits with automatic pipe clamps, offering a solution for your automotive repair needsAutomotive Tool: Brake Line Service Tools are ideal for fuel rail hoses, and brake lines, this tool is an essential addition to any automotive repair kit for efficient maintenance work Specification: Material: Steel Size Chart: Packing size:25cmx5cmx2cm/9.84inchx1.97inchx0.79inch Package Includes: 4pcs Brake Fluid Line Clamp Tools Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.