Package includes: 12 pieces of faucet filter aerators in sizes 16.5mm, 18.5mm, 21.5mm, and 24mm male threads to fit various faucet sizes. 5 plastic aerator wrench tools for removing and installing different aerator sizes. Easy installation: Faucet aerator replacement set comes with tools that allow quick removal and installation in minutes. No plumber needed. Most installations can be completed in under a minute. Made of high-quality ABS material: Aerator keys are constructed from durable ABS plastic, ensuring strength and long-term use without cracking or breaking. Wide application: Flow restrictor aerators fit kitchen sink faucets, bathroom faucets, and lavatory spouts. Compatible with standard threaded faucets and works with brands such as Moen, Kohler, American Standard, Danze, and Grohe. Non-splashing performance: These faucet aerators mix water and air to produce a smooth, bubbly flow while conserving water. Helps prevent splashing and maintains consistent water pressure. Ideal for replacing or cleaning clogged aerators, restoring proper water flow, and improving faucet efficiency.