This Play System has all the basics of a great play system without the high costs. The Play System has a challenge ladder, double wave slide, tube slide, and a number panel to keep the kids learning during play. The elements of the Tidewater Club come together to make for an enjoyable experience for the kids. The 3.5-inch upright posts are designed for mounting in-ground. Kids will enjoy everything the Lake Powell structure has to offer. The high quality materials, low price, and easy assembly will persuade adults.