The Hop Spider is perfect for containing hops while brewing beer and prevents hops getting into your chiller or fermenter! The Hop Spider clips on and sits over the edge of your kettle or brew pot or single vessel brewing system like a Robobrew or Grainfather or Crown Urn. During the boil hops can be poured directly into the spider. The spider is suitable for up to 300 grams of hops. The basket is 35cm high with the opening at the top being 15cm diameter and tapers down to a 10cm diameter at the bottom. Made from 304 stainless steel and with a 0.2 mm aperture it will capture 99% of the hop material while still allowing the hops to move in the kettle so you get good hop efficiency.