This product is an arm that serves as a connection between the scooter body and the wheel. Each wheel requires 2x arms to securely hold it to the scooter body. Before adding the product to your shopping cart, ensure that you select the correct arm that suits your needs. It is compatible with Dualtron Achilleus model. The package includes 1x Arm, and you can choose the specific arm you need from the available options provided. This arm is an original Minimotors item, ensuring high-quality and precise compatibility with your scooter.