XT90 uses 4.5mm banana plug inserted Using design, light weight, small size to high current Anti-plug ignition design The male plug is for ESC, female plug is for battery. Unique XT90-S is the anti-plug ignition design, the fuselage in the small plug into the resistance, to achieve a large volume of AS150 previously required in order to achieve the anti-plug ignition function. Compatible ordinary XT90.XT90-S plug, XT90 plug on the basis of the success of selling on the introduction of an upgraded version of the plug to respond to the requirements of resistance to higher current plug on the market today. Different batches may have different appearance label printing, which not affect the use Colour:Yellow Material:plastic Package Contents: 10 Pairs x Male Female Connector Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.