A10 filters Compatible with Tineco A10 Hero/Master and A11 Hero/Master Cordless Vacuum Cleaner. Easy to Install - Free your hands from the complicated replacement steps. No extra tools needed. Recommend to replace the A10 filter every 2-4 months depending on usage. colour:As shown Material:plastic Package Contents: 3 x pre filter 1 x post filter Only the above package content, other products are not included. Note: Light shooting 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.