I feel like this was a great deal. I got (5) 7 gallon bags for $12.95. If you are considering buying these, I would compare pricing for different sizes. Strangely, (5) 7 gallon bags is actually less expensive right now than (5) 5 gallon bags. Also, if you are used to non-fabric planters, these might feel/look slightly smaller than what you're used to for the gallon capacity. If in doubt, size up.

This is like a black, thick felt bag with handles and a round but flat bottom. These are nothing fancy but I'm sure the plants don't mind and the cost is significantly less expensive than any other planters I could find. I just got (4) young "baskets of fire" pepper plants and each will need it's own 7 gallon container (you can see one in pictures below).

Once you get it full of dirt it feels very steady and I like how it has good drainage of water as it just drips through the bottom of the fabric. But also for that reason, these are really more for outdoor use. I like how it has the handles for picking up or dragging, but when you don't need them they can just be folded down as well. Happy with purchase and would buy again.

I'd really like to give these 4-5 stars as they seem to be quality fabric and well-attached handles. (Only time will tell there.)
But...

Brands vary in their actual volume - knowing this, i compared this brand's advertised dimensions for the 3-gallon product - "Pot Dimension : 10" Diameter 9" Height." with a Smart-Pot #3 - 10" Diameter, 8" Height. However, the actual measurements of the 247Garden 3 gallon is 9.5" diameter and 8.5" height. Now, even a Smart Pot "#3" isn't quite 3 gallons, more like 2.72 ... but this is smaller still at 2.61.

>> 2.61 Gallons is the actual volume of this product, when filled to the very top.
Yeah, it's not that big a difference in volume from the Smart Pot brand (~5%) but i would argue that advertising accurate DIMENSIONS online is more important than accurate volume. Those of us with experience using fabric pots know that 3 gallons isn't exactly 3 gallons, but an INCH should be an INCH.

Pictures compare smart pot brand to 247Garden.

I bought the 5 gallon bags and they didn't seem big enough so I bought the 7 gallon bags. Here's a picture of the 7 gallon bags with a 5 gallon bucket.

Dec 2017 Update:
So far I think fabric grow bags is my favorite style of container gardening, compared to other styles like regular pots, 5-gallon buckets, container hydroponic, and wicking containers (City Pickers/Earthbox). First, grow bags are pretty durable while being relatively cheap, so you don't have to shell out lots of money for other high quality containers. I can't speak for much larger sizes, but 7 gallons and under has been a good experience for me. Second, drainage and aeration allows the plant roots to grow well and it seems to me to help reduce diseases. I now use 50/50 compost and potting mix (the kind with fine pine barks and drains well such as by Ecoscraps or Just Natural, not the water retentive and acidic peat moss kind).

Only downside is grow bags have no wheels so if you like the convenience of pushing them around, you might have to invest in some expensive 'plant dolly', carts, or build your own.

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I bought the 1, 2, 3 and 5 gallon ones. The sizes calculation are a bit of a stretch. If you fill the soil all the way to the top then they'll pass, but just expect slightly less than the actual size. It's a good price and looks like good quality so I have no complains.

For my hot climate it dried it very fast and needs watering every day, because of this I add more compost in them along with the potting mix, or double stacking the bags to reduce drainage. (Some people are against compost in containers, but imo this is less of a problem in grow bags because they drain so fast in hot climate).

The roots grow really well in them. I use 1 - 2 gallon containers to grow microdwarf, 3 gallons for determined dwarf tomatoes, and 5 gallons for indetermined dwarfs, cherry tomatoes or full sized tomatoes but top them off and limit the plant to one or two stem.

The material feels very strong. However smaller than described. Ill ad pictures of my 5g. And 3g.