Size - 20X30cm(8x12in), Please note that this is the largest size and suitable for gallon pitcher. Easy 3 steps get your flavorful cold brew coffee! Material - Our coffee brewing bags are made of non-woven fabric with high temperature resistant and convenient. No Mess Coffee Filter - Since the cold brew filter is entirely disposable,there is no need to wash the nylon or cotton bag again and again. The disposable mesh brewing with drawstring design are easy to use without any mess for every coffee lovers. Multi Purpose - The filter can be used not only for coffee, but also for tea and Chinese herb.If you love tea, this is perfect for you. Warming Note - This is a disposable product, please do not re-use. Please kindly allow the little tolerance in product size.