Features : Make your car more personalized With rubber sleeves to fit most auto or truck applications Designed with blue LED eyes, activated by hidden button on the neck Suitable for cars equipped with manual transmission or automatic transmission without OD lock   Specifications : Design: Cobra Head Size (L x W x D): 100 x 70 x 25 mm / 4 x 2.8 x 0.98 inch Installation Hole Dia.: 15mm Mateial: ABS + Electroplating Color: Silver   Assembly Procedure: Dismantle the original extension of gearstick. With the enclosed adaptors measure the circumference of gearstick and then put the suitable adaptor on the edge of gearstick. Unscrew the bottom part of the speed ball and put it on the gearstick. Put the ball on the gearstick and screw it tight with the enclosed spanner. Screw the bottom part of ball to the attached gearstick.   Package Include: 1 x Gear Knob 1 x Installation Wrench 2 x Rubber Sleeve 6 x Screw