Specification:Made of high-end aluminium alloy material, it is durable and sturdy for a long time.It is very suitable for most RC cars.Wave box base has the characteristic of lightweight, compact which will attract you.With two kinds of two holes and four holes, they can meet your needs.For example, the two holes have double-speed design, and the four holes have single-speed function.Features of easy to install and operate belong to this item.Item Name:Wave Box BaseMaterial: Aluminium AlloyFeatures: Lightweight, Double-speed design, Compact, AttractiveSize: 8.0cm x 7.1cmx1.3cm/3.15" x 2.80"x 0.51" (Approx.)Notes:Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Wave Box Base