Packaging Includes:Battery hold-down-2pcsFixing bar-2pcs3M adhesive tape-2pcsFlat head screw 4x12-8pcs4.0 Drill bit-1pcVelcro-8pcs Part Location:battery Does this product replace a specific part or function?Yes Product major function & usage:Fixed battery Major advantages of upgrading to this product:(1) The battery hold-down and bottom fixing bar are made of aluminum 7075-T6 material, which is more sturdy and has stronger fixation.(2) When installing the bottom fixing bar, four holes need to be drilled with a 4.0 drill bit, and the fixing bar enhances the firmness of the battery hold-down.(3) Equipped with Velcro, the open design is compatible with batteries of different sizes and capacities, the adjustment is flexible, and the battery is not easy to fall off. Suitable Model:TRAXXAS-1/6 4WD XRT 8S-78086-4TRAXXAS-1/5 4WD X-MAXX 6STRAXXAS-1/5 ELECTRIC 4WD X-MAXX 8S MONSTER TRUCKTRAXXAS 1/6 PRO SCALE 2WD SAND CAR 8S-109076-4 TRAXXAS 1/5 X-MAXX 8S MONSTER TRUCK-77096-4