Filters maintain the cleaning efficiency of the robot, reducing the ingress of dust, pollen and other allergens to the air. The accessories should be replaced every 2 to 3 months. All the parts are made of high-strength and environmentally friendly materials. it's easy to remove dirt, dust, and trash in corners and edges from the accessories, especially and pet's hair. Accessories parts are durable and easy to install Product Name:For V11 Hepa Filter Compatible For V11 Cyclone Animal For V11 Torque Drive For V15 Detect For SV14 It's not fit for V12, please check your model carefully buying color:Green Material:plastic Package Contents: 1 x vacuum filter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.