【Specification】For anti-spill coolant refilling and air bleeding. Includes 4 extension pipes for confined spaces or tricky angles. 【Features】The transparent lower chamber displays the amount of air bubbles remaining in the radiator. Special design of connector to adapters provides anti-spill feature. 【Reduce Heat Transfer】Includes adapters with nylon covers to reduce heat transfer resulting from air bleeding. 【Funnel capacity】1,600 ml / 54.1 Oz. suitable for passenger cars, trucks and heavy-duty vehicles 【Original Taiwan Patent Design】Please identify FIRSTINFO Coolant Refilling Funnel Set that has the patent authentication. We provide you with quality assurance tools with 12+10 months after-sales warranty (10 months warranty by the register) support. Help you to achieve a satisfactory shopping experience. 12-Piece Coolant Refilling Funnel Set with Extension Pipes