Package includes: 12 pieces faucet filter aerators in sizes 16.5mm, 18.5mm, 21.5mm, and 24mm to meet various faucet size requirements. 5 pieces aerator wrench tools for removing and installing different sizes of faucet aerators. Easy installation: Faucet aerator replacements come with wrench tools that allow quick removal and installation within minutes. No plumber needed. Installation can be completed in under a minute. Made of high-quality ABS material: Aerator wrenches are constructed from durable ABS plastic, ensuring strength and longevity. Resistant to breakage and built to last. Wide application: Flow restrictor aerators fit kitchen sink faucets, bathroom taps, and lavatory faucet spouts. Compatible with standard threaded faucets and common brands including Neoperl, Moen, Kohler, American Standard, Danze, and Grohe. Non-splashing performance: These mixer faucet aerators blend water and air to produce a smooth, bubbly flow while maintaining water pressure. Helps prevent splashing and reduces water usage. Ideal tool set for replacing or cleaning clogged aerators, restoring proper water flow, and improving faucet performance.