This item is manufactured specially for smoking pipe filtering. These filters screens are made of stainless steel, durable and anti-rust, easy for using, cleaning and sterilizing. They can prevent the hot ash and embers from entering the pipe. Besides, they are also combustion-supporting. Features - Color: as shown. - Material: stainless steel. - Size: 1.3 x 1.3 x 1cm/ 0.5 x 0.5 x 0.4inch. - Suitable for most sizes of pipes. - Stainless steel screens are longer lasting than brass and hold up to heat far better. - Prevent the hot ash and embers from entering the pipe, making the pipe easier to clean. - Effectively allow free flow of smoke and air while keeping dirty, harmful ash from pulling through your pipe. - Good for long-term and repeated use.