Braided stainless steels toilet connector for easy installation. It have corrosions resistance and durability. Flexible supply hose is designs to twining and crimping together. 1/2inch Female Compression Thread: Allows for secure connection to the water supply. 7/8inch Female Ballcock Thread: Ensures proper connection to the toilet tanks. with simple tool within few minutes. None plumbers need. Used to connecting the water supply to your toilet., Manufacturer: AOYUDJ