The 3pcs oil change tool set is designed for drain and refill, the m12x 1.5 female coupler can go with the oil dispenser. Specially designed 3pcs joints for filling, draining off and removing/installing the screw, replacement for Benz 9G-Tronic Transmission 72 5.Features:Adapter used to replace the plug in the transmission to allow filling.Specially designed 3pcs joints for filling, draining off and removing/installing the screw.The m12x 1.5 female coupler can go with the oil dispenser.Replacement for Benz 9G-Tronic Transmission 72 5.Specially designed to assist in complete oil change.Specifications:Material: LasticsPackage Weight: 110g / 3.88ouncesPackage Size: 230 * 140 * 60mm / 9.06 * 5.51 * 2.36inPacking List:3 * Oil Change Tool Set