This all-in-one replacement part is a holder and splash guard in one. You can certainly support a decorative glass dome on top, but you don't have to because this product is a vertical support and water-blocking dome in a single compact package. It's compatible with virtually any mist maker, and it's designed to sit in the bowl to block splashing and keep water inside. It features all metal construction so it's sturdy and long lasting. It also has a rubberized bottom ring to help prevent slipping and keep all parts right where you place them. Use this part to fix a broken misting fountain, replace a lost piece, or design and build your own fountain from scratch. Because it can sit underneath a mister, or surround it as it sits flush against the bowl, you can pretty much use it with any model. Once in place, it will block heavy spray, and help direct the flow of mist. It's an integral part that will complete any set up, and help keep the surrounding area dry. This quality splash guard is designed to last for years, but accidents, loss or heavy use may cause you to need a new one.