5" x 5" tray is perfect for resin doming both small and large pieces, and works especially well in supporting irregular shapes. This tray is made of plastic, not silicone, so be conservative as you pour. If you have any spills or overpours that go to the tops of the prongs, you'll need to allow it to cure, then pry them off with a sharp tool like an xacto knife or a fork. Small spills can be left at the bottom of the tray, as you'll only be using the tips for Doming. Does not include cover. Watch this How-To video for tips.