These were very easy to use! We used very little caulking with these for an extra seal. The videos were great help. Answered all our questions and were very useful over all. We couldn't have done this easy DIY project without them. We highly recommend these products. It took us a total of 12 hours spread over 3 days to complete our small crawl space, including clean out and leveling of dirt. And we're 55! Fast delivery, too. Our total cost was 1/5 of each of the 2 bids we received from basement experts.

Very sturdy, nice large, flat head, grip well. Head will not break when hammered like cheap ones. Definitely the pin to get for vapor barrier installation.

It was very easy to work with and very strong. My job looks great!

Excellent product, the only reason I rated 4 and not 5 stars for durability is that this is a recent installation and I will know more about durability in 5 - 10 years. I am certainly not expecting any issues based on what I've seen. Perfectly sized to work with a 1/4 inch drill bit. They are easy to install but once in, I think would be difficult to pull out.

I am very happy with the result since we converted a vented space that was a nightmare into one that was actually pleasant to be in. It should pay in utility bill dividends over the next few years.