Shop name:Chong Qing Shuo Yue Ke Ji You Xian Gong Si COMPATIBILITY : with D600 / D601 and iwoly V600 Corded Vacuum only , check the number before make the purchase! For performance, change the filters at least 2 to 3 months. HEPA FILTRATION : Eliminate fine dust, dirt, sawdust, cold ashes, wood , fine powders, debris. EASILY REPLACE : Take apart the dust cup, rotate and take out the HEPA. WASHABLE and REUSABLE : The HEPA filter is washable. By cleaning it regularly, you can proper filtration and adequate suction at all . Material:plastic colour:Black + White Package Contents: 7 x filters 7 x filter cotton Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.