This is a set of brackets for installing 16cm speakers in the front and rear of JB64 Jimny and JB74 Sierra. * Regarding the rear brackets, it is also possible to change to a type of bracket that relocates the genuine front speakers that have been removed to the rear. * Compatible with aftermarket 16cm speakers. Set of left and right. * Includes mounting bolts. * Installation of Carrozzeria TS-F1640 has been confirmed. Although the specifications of major domestic manufacturers seem to be the same dimensions, it has not been confirmed. ● Material PLA+ * Higher strength, rigidity, impact resistance, and heat resistance than PLA. * No need to worry about moisture absorption like MDF. ● Dimensions Inner diameter: φ132 Outer diameter: Front φ164, Rear φ160 PCD: φ150 ● Installation Procedure 【Front】 ① Install the bracket to the vehicle side as shown in the second photo. * 3 each of the included M6 bolts, washers, and nuts. ② Screw the speaker to the bracket. * 4 each of the included tapping bolts and washers. ◎ It is recommended to use thread-locking agent on the nuts to prevent loosening of the screws due to long-term use. (Available for around 200 yen on Amazon) 【Rear】 ① Screw the speaker to the bracket. * 4 each of the included small bolts and washers. ② Remove the cable hook on the vehicle side. (Pinch both sides and push it in) ③ Screw the bracket with the speaker attached to the vehicle. * Set it horizontally as shown in the 8th photo and rotate it 90 degrees for easier setting. * 4 each of the included large bolts. ④ Return the cable hook. Speakers are not included. Thank you.