This was super easy to install and made the shower in my bathroom go from mehhh to amazing. All of the pieces (including the important tape to put around it so you get a good seal) is included, and it took me less than 5 minutes to take off the old shower head and install this new one. Definitely worth the money to make such a drastic improvement on showers!Why didn't I do this back in 2016 when I built the house? The water pressure with this unit is noticeably better and the flow is great. It takes half the time to wash your hair, and my son came home from college and said he just stood under the shower for ten minutes (that may not be a good thing lol). It was very easy to install, and the wrench and the Teflon tape came with the product.This showerhead is extremely versatile and a great buy for the money I spent on it. Honestly I can't believe it was so cheap.This shower head really delivers at half the cost of the name brands like delta, moen etc. it double the delivery of water pressure. I strongly recommendAmazing shower. Feel like you’re under a waterfallLiterally as advertised. Just moved into this duplex apartment. It's very old and needless to say, the water pressure, well, I didn't believe any shower head would be able to help give me a real shower, not just a sprinkle.I'm beyond amazed. It comes with a restrictor, but there was no way, with the low pressure here, i was going to use it. That said, it's powerful without it, even here, so with decent water pressure, i'd rec'd using it.For the money, appearance, and great water pressure increase, definitely 5 star worthyMy house is 19 years old. The hardest part of this job was to remove the old arm. I'm a 76 yearold woman and with a little help from liquid wrench and a heavy duty wrench I was finally able toremove the old and then it was easy to install the new arm and shower head. Had to do it twicesince I decided the 6 inch arm was a little short. Recommend using an 8 inch arm.Install was super easy. Includes a wrench for tightening. Shower head works as advertised.Looks nice, but it is garbage; leak at the connection from the first moment; the key provided in the package does not fit; Teflon tape in the box is garbage and not long enough.The seller tried to make me pay for International shipping cost over $15.00Amazon should stop selling such a low quality products, regardless how cheap may seems, because they are not.Deliciosa regadera de lluvia pesada y masajeadoraGreat shower head.I now own 3 of them