There is a total of four Solar disk lights included. On the back of the solar disk there is a ON/OFF button that you can push to easily turn on and off the light. The stakes are easy to attach to the solar disk but they are plastic so you definitely need to be careful when attaching them to the solar disk and placing them into the ground (especially if you have hard dirt/soil) because it will break. The design of the solar disks are absolutely beautiful, it looks like stone surrounded by the light. The solar disks aren't very big but look great and light up an area well. I placed them in the rose garden which is usually really dark at night and it lit up the area especially around the wall. 
The only thing that I would ding this solar lighting for is the lighting.. I didn't really like the white light and was hoping it was more of a warm yellow glow BUT thats just my opinion. Other than that I would highly recommend this lighting.