Features: l Roof brackets and crossbars are made of mixed carbon nylon plastic, with aluminum alloy rods on both sides, light and tough l Ensuring strength and reducing the weight of the car roof as much as possible l The mounting width of the bracket is adjustable and the length is adjustable to adapt to a variety of car roof sizes l The car roof luggage adopts a streamlined design combined with rear guide groove detail l The cover can be opened, can easily storage a 6400mAh 3S battery l Need drill a 2mm hole on the roof of the car for install Colors&Types(Optional): l Roof Luggage Rack Kit l White Luggage Rack Kit + Roof Luggage Box l Red Luggage Rack Kit + Roof Luggage Box l Black Luggage Rack Kit + Roof Luggage Box l Silver Luggage Rack Kit + Roof Luggage Box l Yellow Luggage Rack Kit + Roof Luggage Box Specification: l Material: Mixed Carbon Nylon Plastic + Aluminum Alloy l Applicable Model: for 1/10, 1/8 RC Car Package: l 1x Roof Luggage Rack Kit or l 1x Luggage Rack Kit + Roof Luggage Box