I'm fairly sure it's a 510. The 510 is a very popular e-cig to start with and you'll find lots of info on it in the forum. For something that is close to the size of a regular cigarette, the most common recommendations are for the 510 or the KR808. There are other good models as well, but this will let you give
vaping a try with good equipment. The 510's biggest short coming, by the way, is battery life. To be successful, it's usually recommended to buy either a personal charging case (PCC) or a USB pass-through along with at least 2 or 3 batteries.
You are only getting one battery and one atomizer. It will be difficult to stop smoking entirely since you'll be waiting for the battery to recharge. To be honest, I've seen 510 kits that include 2 batteries and 2 atomizers for less than the $40 this costs. If you can accept the idea of using something a little larger, there’s also the ego/riva style models that use the same atomizer, but have a much larger capacity battery. They last a lot longer before they need to be recharged. I think Liberty Flights is selling Riva kits for $30 after discount and there are other ECF vendors that have good prices as well. Something to consider if you decide e-cigs will work for you.
Hope you enjoy your PV. I started with a 510, it was a great introduction to
vaping and it is still my atty of choice.