Instruction: Evaluate the answerability of a question by analyzing the related document, outputting yes if the document contains information addressing the question, and no otherwise.

Input:
Question: is this extension cord suitable for Car block heaters. i have small plug from car heater out and need an extension cord to connect with electricity
Document: We're using this extension cable in conjunction with the portable Level 2 charging cable that came with our 2014 Toyota Rav4 EV. I use it at work when the spots closest to the outlet are blocked with other cars and I need to plug in. Even though it's 50 feet long, I still get 3 miles of range for every hour plugged in. This is the same amount that I get when I plug in using the cable that came with the vehicle.
Solidly build, amazing quality! Just what I need to connect external devices to power sockets that are far away from reach.
At the current price of about $30, this is a superb deal for an extension cord with these specs. It's also surprisingly flexible for such a heavy-duty cord, and has a very sturdy plug end that makes it easy to remove from the outlet when you're done using it.
This is the most heavy duty extension cord I have ever owned, but it is the easiest to coil up as it is very pliable. Seems like a small thing, but is a noticeable difference that makes using the cord that much easier. Price is right too.
I can't begin to describe how pleased I am with the quality and value of this extension cord. I will be purchasing more in the very near future. I love how they are made in the U.S.A, and they are OSHA compliant. This blows all of my old-school small gauged extension cords purchased from the big box stores out of the water.
Made in the USA, durable, heavy duty cord. Worked great this winter with our generator, carried the load without issue. Storage can be a small challenge as the cord is thicker and heavier than the average basic extension cord, but that was expected with a product like this one. I'm a big fan and definitely suggest everyone give this manufacturer a try. Plus you support companies right here in the USA, which is always a bonus.
I needed a heavy duty extension cord to extend the power to my car hoist. This fits the bill very nicely and provides  the required amperage to run the lift motor.
I purchased this extension cord based upon the great feedback here. Unfortunately, the electricity only flows when the male side is at a certain angle. I will say that it appears to be of good, heavy gauge. YMMV.
This is truly a heavy duty cord, and they weren't kidding about the heavy -- this thing weighs a ton. It has a lot of copper, obviously. If you don't need the high amp capacity, say for extension lights or light power tools, you might consider a much cheaper 16 gauge model, I use this one solely for my electric mower, which draws a lot of amps.
I was really surprised to learn it was made in the good old US Of A.  I am using the Extension cord to power my portable 12k Air Conditioner in my Motorhome. Works great and the cord does not get hot as it is rated at least 3 amps and 3000 watts above the operating required current. Above all it is a quality product which I would buy again if the need arises.
Answer: yes