These flat top 8x8 deck post caps are a great solution to prevent water from entering the top of your deck posts. At the same time, they are both beautiful and functions. The Newel style flat top provides a great place to rest a drink when hanging out on your deck, or to support a small planter or flower pot. We guarantee all of our SNAP-Cap post caps for 10 years against warping and fading. They are identical in fit to our pyramid 8x8 fence post caps and can be used interchangeably.