This product is designed to provide a reliable seal for side-entry fill valves in older toilet tanks. The diaphragm washers are crafted from rubber, ensuring a and watertight fit. These washers are essential for maintaining the proper function of your toilet's water inlet system, preventing leaks and ensuring efficient operation. Features -Color:Black -Material:Rubber -Size:2.80X2.80X1.50cm/1.10X1.10X0.59in -Size:6.30X6.30X0.30cm/2.48X2.48X0.12in - and reliable: designed for long term use, ensuring your toilet tank functions smoothly without frequent replacements -Sealing performance: precisely designed sealing rings effectively prevent leaks, maintaining the normal operation of your toilet tank -Easy installation: the side entry fill valve design makes installation simple and convenient, suitable for various old style toilet tanks -Fine workmanship: crafted with precision, these washers are resistant to wear and tear, making them highly practical for everyday use -Versatile design: suitable for a wide range of toilet tanks, meeting different needs and ensuring compatibility Package list: 2 sets Toilet Tank Seal Washer