Features: 125v Sturdy Durable Three prong Molded plug Locking Plug 30 AMP rating True heavy duty Worked flawlessly Finger ring to pull plug Typical 10 AWG wiring 25’ standard cable length The strain relief plug design NEMA TT-30Plug to the L5-30R Has ingenious web sling to hang Works both indoors and outdoors An LED status light on locking receptacle side Electrical Testing Laboratories (ETL) listed Plug/Cord Bonus is the additional 125v (female) TT-30R to (male) N5-15P current tap. Drawback: No anti-theft hang ring for locking Bottom-Line Yes, I would select this again. How this arrived This arrived in a good sized, sturdy, plain brown, sealed, cardboard, non-retail type package that measured 11” x 8” x 5½” (the package was a perfect fit for the product inside). There was little else on the exterior of the package, other than the brand name, and basic descriptive information about the item inside. The location of manufacture was also noted. What’s inside? Perfectly coiled, inside, was the Power (extension) Cord (“Cord”). The package used was a perfect fit. It’s a nice Cord. It gives the feeling of being sturdy and durable, everywhere, especially the molded plug and receptacle ends. The Cable measured about 25’ long. Also included inside was a tag that, tethered to the Cable with a zip tie, that noted the dangers of using this Cord, which I will call its data sheet, that has some very basic to specific information and some warnings, with small printing – I did not have to use a magnifying glass, but for those who cannot read near, have your glasses ready. It’s a typical data sheet – that also had a warning (more on this later). The Cord weighs in at about (8) pounds. Warning There was that California Proposition type cancer warning also printed on the data sheet. Although I appreciate the warning, the listing failed to note that, so I am going to reduce a star for this, which is conservative, the reason being that usually this type of equipment contains something California has a warning over. (I saw no RoHS certification surrounding this Cable.) RoHS stands for? Restriction of Hazardous Substances in Electrical and Electronic Equipment (RoHS), which are European Union rules restricting the use of hazardous substances in electrical and electronic equipment to protect the environment and public health. I wish this was certified as such, maybe the reason for the California Prop65 warning? Which can even be on a RoHS certified device. This lack of RoHS certification weakens this a bit. Bonus item #1 Also included was a heavy-duty web belt, with Velcro closure, and a thick wide plastic handle to rope/hang this Cord. The web belt was at least 14” long and that plastic handle was curved, for comfort, and about 5½” long and almost a 1” in diameter. It weighs over (4) ounces. Bonus item #2 Another bonus received was the additional 125v (female) TT-30 Receptacle to (male) 5-15 Plug. Which plugs into a 15-amp plug, they call these a current tap usually. There was no ETL mark on this. It weighs in at just over (3) ounces. Wiring The Cable has massive 10 AWG wiring. It’s incredibly thick, compared to others. Thin wiring gets hotter faster and loses electricity through that heat. So, for instance, (100’) of 12-gauge wiring loses 77 watts of energy, just through heat loss. Here, the wiring is 10 gauge and about (25’) long. So thicker and shorter is better. STW means? On an extension cord, S is for service; T is the coating (thermoplastic/vinyl); W is weather approved. Here, I could see the full reference to STW, on the wiring. The listing noted this information. AWG means? American Wire Gauge. The smaller the number, the bigger the wire is, so 10 AWG is thicker than 12 AWG. When pumping through higher voltage and amperage, you want thick, heavier wiring, so I am happy with this. Anti-Theft I would have liked to have had an anti-theft ring. Others do have this, while others do and include a nice lock and cable. This does not have a lock and cable, and considering its price, should have. Value This is priced at a competitive price. I have not seen any discounts since I selected this. Country of origin Mad in China. Warning Always shut the power off when working with this. Use common sense. Overview That attention to detail was obvious, for instance, the NEMA TT-30P has a finger ring to assist in pulling the plug out. The plug is a kind of anti-[slip] molded plug, the significance of that being added safety, durability, and ability to safely grab and pull apart (with the receptacles’ finger ring – again, it’s having attention to small details]. The connectors are attached to the cables making the plug and receptacle a single part. This gives the extension cable the wherewithal to withstand exposure to rain, snow, mud etc., and vibration and shock while allowing flexibility, which is aided by this extension cable’s strain relief design (the spring like look at the end of the plug’s that allows for flex). I also appreciate the prongs on the plug had a cover. The brand Vevor, it is a name brand I am not familiar with, but they (or the underlying manufacturer) did right by obtaining an ETL evaluation, it’s marked on the molded plug and cable. [The ETL mark, which this extension cord has, demonstrates, to me, that this product had been rigorously tested to it class applicable standards. My understanding is that the ETL standard also meets the standards for Underwriters Laboratories (UL) and the CSA Group (CSA) standards. These references are so marked on the Cord. [Consider doing your own research.] What ETL tells me That ETL mark tells me the manufacturer is trying to tell the world they seek high standards and stand behind what they sell. So, if something is wrong. They may stand behind what they claim and sell (or they at least itemize the product enough to allow the buyer to know what they are getting). I knew what I was getting, to some degree, but there was a surprise. [Also, ETL was founded by Thomas Edison, their heritage goes back some (125) years. A certification isn't a requirement to sell an electronic device in the US. But do we really want to trust a device that the manufacturer did not want a third-party to certify? Typically, certifications are noted. We see the ETL certification here also makes references the US, which I believe suggests that this meets the US’ equivalents, which is good. Reasons bought The primary reasons this was bought was (1) for the need of an extension cord and (2) because it was ETL listed. I also liked all the other bells and whistles noted above. This does its job perfectly. Bottom-line: A very strong four (4) stars. The lack of warning took this down a star, for me. I hope my thoughts were informational.