Package included: Stainless Resin Filter Cup + Silicon Funnel. + 100ml Measuring Cup Application: Filter cup, effectively filter impurities while pouring resin back into the bottle; Silicone funnel is used to pour resin back into a bottle, fit all kind of bottle ( the max width of the bottle neck is 9/16"). Material: Filter is made of stainless steel, easy to use and clean; Silicone Collapsible Funnel and 100ml Measuring Cup are made of quality silicone, soft, flexible, eco-friendly. Good match.