1.high quality rubber material, easy to clean, safe and nontoxic. 2.Practical coffee accessory, suitable for Espresso semi automatic coffee machine. 3.Perfect Halloween and Christmas gift choice for your coffee lovers. 4.Compact size, lightweight, suitable for most standard portafilters. 5.Easy to install, can directly replace the old or damaged one. Material: Rubber. Product Size: Approx. 50x2mm / 1.97x0.08in. How to Use1. A rubber blind pad and a coffee machine handle are provided with a strainer. 2. Put the blind piece into the tip of the coffee machine handle, and then put a spoonful of 3 to 5g coffee machine special cleaning powder or a special coffee cleaning tablet. 3. Press the brew button, run for about 10 seconds, then turn off. 4. Repeat the above operation about 5 to 6 times at intervals of 10 seconds. 5. Remove the blind film, rinse the coffee handle, and the cleaning process is complete. 2mm error due to manual measurement. Thanks for your understanding.