GOOD FIT: This A10/A11 pre-filter is compatible with A10/A11 Hero, A10/A11 Master, and S11 Series cordless vacuum cleaners, helping your vacuum maintain optimal performance. DESIGN: This set includes 3 A10 filters, allowing you to have a replacement ready when needed. Keep one in use while others are being cleaned. QUALITY: Made from high-strength materials, these filters are designed for durability and long-lasting use. EASY TO INSTALL: Simple replacement process with no tools required. Designed for quick and hassle-free installation. FRIENDLY REMINDER: For best performance, replace the filter every 14 months depending on usage. COLOR: Gray MATERIAL: Plastic PACKAGE CONTENTS: 3 x Vacuum filter Note: Other items shown in the image are not included. Note: Colors may vary slightly due to lighting and monitor display differences. Size may vary by 13 cm due to manual measurement.