Compatible with Traxxas HSP Redcat HPI Losi Tamiya Axial Sakura 1/10 RC Crawler Drift Touring Racing Car Made of high quality metal,come with strong magnet plate. The ring is easy to install and remove.A great upgrade part for your RC car. Strong magnet ensures that the post mount can be absorbed to your car shell tightly. Non-destructive installation, you do not need to drill mounting holes It is convenient to open or close body shell. Material: Aluminum alloy Colors: Color:Blue/Purple/Black(Optional) Weight:58g Quantity: 4Pcs Package includes: 4 x Magnetic Invisible Body Post Mount