The campaign is a fundraising campaign. Therefore, it comes with a funding goal that needs to be met in 30 days from February 20th.
If the funding goal is reached (i.e. enough money is collected), the campaign is considered funded and the Mazinkaiser SKL will be sent into production (not instantly because some things will need to be sorted and finalized first).
As it is a fundraising campaign, you won't be able to "buy" a product. Instead, you will be able to pledge a certain amount of money.
When you pledge, you become a backer and you will be able to select one of the available rewards in return (for example, one of our reward is a bundle of the Mazinkaiser SKL Anime color edition).
Each reward is described in detail and has a minimum amount you need to pledge in order to be able to select it.
However, if this system, under the hood, doesn't work like a purchase, by the user experience perspective it works exactly like an online shop:
put in your cart the desired item, proceed to the checkout where you will provide the payment details, and submit the order.
Please keep in mind that this is a fundraising campaign and you can pledge any amount of money, also without asking anything in return, if you like.
This might sound strange, but the purpose of the campaign is to collect money in order to enable financially the owner (Prometeo Toys in this case), to step into the next phase (production in this case) and possibly to give enough room to move to another project. In other words, the goal of the campaign is to help to Prometeo Toys to start a business, getting something cool in return.
Therefore, every little or big help is more than welcome.

Another important thing to know is that, since only at the end of the campaign it will be clear if the project is funded or not, money will be charged only at the end of the campaign and only if it reaches the funding goal. If it doesn't, no money will be charged.
Not only, but before the end of the campaign you will be able to modify your "cart", i.e. your pledge, adding and removing "items" (i.e. rewards and add-ons) as you like, or even to cancel the entire pledge.

Other things you need to know:

If you want to know more about Kickstarter you can start from here »