Select a category on the "Towbars" subpage.
For the product you choose the electrical kit and you put the specific product into the cart via the option "Add to Cart".
If you do not plan to continue shopping, click "Checkout" to summarize your purchase.
The order will be checked in the cart and you will be able to access the billing information by selecting "To the checkout". After filling in the data you confirm the order.
Fill in your billing information, choose your shipping method and payment method. After you check the box next to "I accept the terms and conditions", just click "Order with payment obligation" and your purchase is complete.