First time buyer from Humtington Beach California. I been looking for ceramic coils for my v hit type b at local cape shops with no luck. The Internet was my next resource, after doing research these guys had the most fair prices as well as having them in stock. A lot of places are out of stock and overpriced. These ceramic coils are so good! Make sure you use a quality battery though! I had trouble getting the coil to fire off with e go twist battery. (They are 2 years old though) so I found a vision spinner II (2015 model) and it fired off the coils and works like a charm!) note: I tried the 2014 model and it didn't fire the coils at all! So make sure you have a good/ current model battery to power these bad boys! Over all the coils make concentrates taste well burn nice and even. Highly recommended. These tips will also work in a wulf mod type b! Thanks Vape Pen Sales! -Joe Ramirez HB, CA