The kettle hop spider allows you to keep all of your boil hops contained in one spot. The mesh screen will hang from the edge of your kettle, Grainfather, Mash and Boil, etc.. and suspend your hops in the boil. The screen is an 800 micron mesh and allows for maximum wort flow and increases hop utilization. The specifically fitted hook can work with any brew pot or the support ring on the Grainfather and Mash and Boil. Can be used with any form of hops. 5.9" diameter, 11.8" length.