Product Description material: plastic Size: 15.9 * 10.1 * 5 cm Color: yellow Quantity: 3 pieces Package content: 3 pieces * Vacuum cleaner filter element 1. Flat pleated filter: Flat pleated filter for Krcher WD 4, WD 5, WD 6, MV 4, MV 5, MV 6 including all special models: WD 5 P, MV 5 P, WD6P, WP5, P, Premium, Car Kit, Renovation Kit . 2.High Filtration: Flat pleated filters provide strong filtration function for cleaning closet, carpets and stairs. It can also filter fine dust particles like dust, pet hair, and pollen out of the air. 3.Tool-free installation: Toolless installation via the fold-out flat pleated filter of your vacuum cleaner without dirt contact. Safety and environmental protection. 4. Ideal for allergy sufferers: Extremely high filtration, filters microscopic pests that can trigger allergies.