Features:1.Made of high quality plastic.2.It has double rubber pads inside, which fit tightly against the piston to avoid leakage, and the thick wall enhances high strength and provides long service life.3.Being translucent plastic really helps in the fluid removal or injection process. Each straw has a rubber cap to prevent dripping-at-rest when you are cleaning up the tool.4.Liquid extraction and infusion: Simple syringe-type action using the manual fluid extractor pump can dual-way extract and fill fluid by differential extractor dispenser quickly and easily. Ideal for emptying or filling up the master tank and other reservoirs, extracting brake fluid from the tank and adding new oil before flushing the brake fluid to the brake caliper.5.Fit for extract.