It is a metal stake that you put in your houseplants and it tells you when your plants need watered by blinking when they get too dry.
This works well and the flash is definitely enough to get you to water your plants. It's easy to use and looks nice enough. The price at over $11.00 is a bit high for me. It's not too bad if you need just one, but when you have lots of houseplants, it could get very expensive very fast. Also, my daughter, who is two, thinks it is very neat and though she hadn't been interested in my plants, now she is. I had to move it to a plant that was out of her reach because she was always taking it out of the dirt.
