Reservoirs -Food Grade Silicone Universal Blind Filter Backflush Disc Backflush Gasket for Black Espresso Machines Highlights food grade Silicone Universal Blind Filter Backflush Disc Backflush Gasket for Black Espresso Machines Description: Easy to clean. Safe and non-toxic. Place the blind piece into the tip of the coffee machine handle, then put a 3-5g spoonful of special coffee machine cleaning powder or special coffee cleaning tablet. Can effectively remove coffee residue without damaging the machine. Need to use with coffee machine. Specification: Material: Silicone Size Chart: Diameter: 5cm/1.97inch Thickness: 2cm/0.79inch Package Include: 1 Piece Blind Filter Note: Color may be slightly different due to color calibration of each individual monitor. Please allow slight measurement deviation due to manual measurement.