●PACKAGE INCLUDES 4 x Oil Needles 4 x Press Rings 4 x Pipe Screws 4 x Pipe Screw Dust Cover ●WIDELY USED Compatible with Shimano and most hydraulic disc brakes. ●[High Quality]: High precision, no oil leakage, good toughness, durable to use. ●[Note]: Please confirm the brake system before purchasing. 4 olives and 4 inserts are for one bike. ●International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.