This hop spider allows you to easily add hops throughout the boil, extracting alpha acids, oils, and flavour while keeping hop trub to a minimum. With adjustable arms and adjustable anti-slip silicone sleeves, the Kettle Spider will fit most kettles.Check out our hop sock bag that goes well with this product! keep bag off the bottom of the kettle to avoid scorching or holes in the bag.Material: 304 Stainless, High Density ABS Plastic, and Silicone Sleeves Length of Arms: approx. 25cm eachDiameter of hole: approx. 9.5cm Max Kettle Diameter: approx. 55cm