Package content: 5 pieces. Aerator tap outer diameter: 23.5 mm, height: 14 mm, thread size: M24. Adapts perfectly to a 24 mm thread. High-quality material: Faucet jet regulator features a chrome-plated brass body and stainless steel filter, making it non-toxic, abrasion resistant, rust resistant, durable, and reliable. Mounting wrench is made of chrome-plated carbon steel, providing abrasion resistance and reliability. High-quality wrench: Made of chrome-plated carbon steel for long-lasting performance. Resistant and more durable than plastic tools. Provides secure grip without slipping or scratching. Included assembly wrench ensures easy installation, even for beginners. Features: Reduces noise and conserves water. Delivers optimal air infusion to prevent splashing and erosion. Effectively filters impurities. Provides strong, uniform water flow. Wide usage: Compatible with kitchen sink faucets and washing machine faucets for switching water flow between faucet and handheld shower.