General description 100% brand new and high quality. This product includes 20 pieces of rubber backflush disc blind filters designed for use with coffee machines. They are easy to clean, safe, and non-toxic. Technical specifications Weight: Approx. 70g / 2oz Size: 5cm x 5cm x 0.2cm Material: Plastic Color: Black Usage Insert the blind filter into the tip of the coffee machine handle. Add a spoonful (3-5g) of coffee machine special cleaning powder or a cleaning tablet. Press the brew button and operate for about 10 seconds, then turn it off. Repeat the process 5-6 times at 10-second intervals. Remove the blind filter and rinse the coffee handle to complete the cleaning process. Other information Package Contents: 20 x Coffee Machine Cleaning Blind Film Note: Light reflection and different displays may cause the color of the item to differ slightly from the actual product. The measurement allowed error is +/- 1-3 cm.