Transparent Funnel: Liquid and bubbles are clearly visible during the bleeding of bicycle brakes. High Quality Syringe: Anti-shedding design won't leak air or liquids, Good sealing. 2 x 60ml Bottles Mineral Oil: Can be filled and bled several times. Step By Step Instructions for Use: Hydraulic brake bleed kit including instruction manuals in English. Thus making bleeding an easy job. Wider Range of Applications: Bike hydraulic brake bleed kit Compatible with 99% of mineral oil brake models on the market. bike hydraulic brake bleed kit, bicycle hydraulic brake bleed kit.