1.USE METHOD:Put the Hair Filter into the washing machine and place it above the clothes,start pulsator washing machine then filter starts to collect debris and hairs.Warm Reminder:Drum washing machine is not available. 2.ECCELLENT CLEANING ABILITY:Put the washing powder into the filter bag,with the continuous rotation of the water flow which can completely dissolve the washing powder and produce dense foam.Tips:Works best with water level 2 inch above the clothes to provide space allowance for movement and capture the lint more effectively. 3.REDUCE CLOGGING:Innovate machine washing to clean the filter,add a layer of filter to the existing built-in filter, fine mesh,reduce clogging troubles, protect your expensive washing machine from unnecessary breakdowns. 4.REUSABLE:Made of high-quality nylon fibre-mesh,these bags,like today's laundry bags,can be used with little or no care.Simply remove any remaining debris and clean the net. 5.PACKAGE & SIZE:Come with 4 pieces reusable washing machine lint catchers, 2 pieces in pink and 2 pieces in blue.The flower part is about 3.15 inches in diameter;Filter mesh is 4.33 inches in length,convenient to use.