It's a giant tarp. You cover it with water, and it's ridiculous fun. You could probably do just as well with some industrial plastic from home depot, but it wouldn't be blue, now would it? This is so much better than a little slip and slide. Just make sure you have a couple sprinklers to keep it wet.

This is an amazing amount of fun. It is a durable, well-made and easy-to-set-up product. It may seem "expensive" but it is totally worth the quality of the plastic, the connection tabs, etc. I have also contacted the company regarding obtaining replacement tabs (we lost a few) and they were prompt and very helpful!!!
BUY IT. That is all I can say. No regrets. Except I might have bought the 75 foot one if I did it over (and had the space!)

Fairly good quality plastic, with a nice slick surface. Purchased a Claber 8660 Turbospike Stationary Sprinkler to place at the top of the slide and hooked up my water source to it. This was a good combination. The metal landscaping spikes and credit card sized plastic tabs supplied for securing the slide to the ground are poor quality, even when used with significant lengths of Gorilla brand duct tape. Several points on my slide needed to be re-secured daily during days with low-moderate wind conditions.
My 8 and 10 year old children love the slide. They play on it for hours at a time. There is no great way to slow down at the end of the slide, as it ends abruptly. Us adults even gave it a few runs, but it took us several days to recover afterward!

We absolutely love our wahii waterslide. We use it at every summer party and event. It is great for children and adults. Spray some water and use a little dish soap and rip down this awesome waterside. We love it! Definitely worth the money.

I purchased this for my son's 7th birthday party. The material can stand to be bit thicker, although that would make it heavier. I made it work on my pretty flat dirt backyard. Here's what I did to make it work and hope this'll help some future buyer.

To start off, before the purchase, I used wooden stakes and left over 2x6's to create about 3-4 feet high dirt mound and steps. It took me couple days worth of work to pile up the dirt, water it and step on/pound dirt. I used 2 wooden stakes and a 2x6 for each step after pounding the dirt. I made 5 steps and with very slight slope on my backyard, kids were able to go all the way to the end of 50' side with help of baby shampoo. If your yard is completely flat, I would recommend maybe 6 steps or 7 if you have 75' one. My slope ended up about 4' wide on the top, due to availability of dirt and I didn't want to do any more work than needed. 2 kids were able to slide side by side.

I tried the slide directly on my dirt/rock yard but due to the material being so thin, I felt all the rocks. I was planning to purchase some wooden boards from local hardware but I lucked out when my office was throwing bunch of old plastic chair mats away. I used plastic mats taped together with gorilla tape. Once I ran out of plastic mats, I used boxes taped to the end of the slide. Then I placed slide on top. Since kids were going to side in the middle, I only placed mats and boxed in that part. As for additional tabs I used another reviewer's idea of using plastic gift cards/credit cards, overlapped wahii's tabs and drilled hole in same place. I used 6 tabs on top of the slide, 5 on the bottom and 6 on each side and used one metal tent stakes per tab instead of ordering wahii's takes.

As I tested out, I noticed that water was running to one side of slide, so I shoveled more dirt under the slide to create a trench to keep the water in the slide. I used a broken oscillating sprinkler (which did not oscillate) about 1/3 way down the slide. On top of the slide, I used a fan hose spray nozzle held in place with couple wooden stakes which concentrated the stream.

Just with water, kids were able to go down about 1/2 way. With bunch of baby shampoo from dollar tree, they went all the way down to the end. Inflatable body board with handle that I also purchased from dollar tree worked really well. So did a huge tube.

Since my yard was all dirt, I used old carpet pieces for kids to walk.

Hope this helped you decide whether this will work or not for your yard. You can make it work. Kids had blast, including a 2 year old. It was a big hit for my son's birthday party. Since my yard is dirt with no grass to kill, I won't be removing it until end of summer.