Package content: 5 pieces. Aerator tap Outer diameter: 23.5mm, height: 14mm, thread size: M24 thread. Adapts perfectly to a 24mm thread. High Quality Material: Our faucet jet regulator is equipped with chrome-plated brass body and stainless steel filter, so it is non-toxic, abrasion resistant, anti-rust, durable and reliable. Our mounting wrench is made with a chrome plated carbon steel body, which makes it abrasion resistant and reliable. High quality wrench: Our fitting wrench is made of chrome carbon steel, it will last a very long time. Thanks to its material, it is very resistant and better than plastic strippers. Even the aerators are secure. Won't slip or scratch. The included assembly wrench makes installation absolutely easy, even for novices. Features: This product produces very little noise and saves water. It offers enough air bubbles to prevent splashing and water erosion. Impurities are filtered out in the best possible way. The water flow is large and uniform. Wide Usage: It is suitable for the faucet in the kitchen sink or washing machine to switch the water flow between the faucet and the hand shower.