Features: 1. Package includes 10 M18.5 faucet aerators and 2 wrenches for regular replacement every 3-6 months to maintain water hygiene. 2. Made of high-quality plastic, corrosion-resistant, durable, and rust-free; compatible with most M18.5 faucets. 3. Water-saving design mixes air and water for a smooth, non-splashing, foaming flow that operates quietly. 4. Easy installation and removal without special tools; use the included wrench to secure the aerator; the filter head is removable for cleaning. 5. Suitable for homes, hotels, and public facilities; ideal for improving kitchen sink faucets or basins, restoring low-flow faucets, or replacing damaged aerators. Product Details: Specifications: Material: Plastic Size: M18.5 Package Includes: 10 Aerators, 2 Wrenches