Compatible model: The replacement VK7 dust bag is perfect for the Kobold VK7 FP7 vacuum cleaner. The product size is 11cm x 25.3cm. Please confirm your machine model before purchasing. Premium filtration: replacement vacuum bags consist of one layer of activated carbon, two layers of melt-blown fibres and two layers of non-woven fibre. The 5-stage filtering can effectively catch 99.9% of dust particles such as dust, dirt, etc. Hair, pollen, lint and so on. Improved sealing technology: the vk7 filter bag can that dirt and dust are securely sealed in the bag after use. Folding design expands the capacity of the bag. For allergy sufferers: The VK7 bag is perfect for allergy sufferers. The dust bag can protect against dust and dirt by filtering the air when vacuuming and providing fresh air and your home. Easy to install: the FP7 dust bag is easy to install. For optimal performance, we recommend replacing the bag every 1-2 months. Different batches of new words may have different colors, which does not affect use. Colour:Photo Color Material:non-woven fabric Package Contents: 12 x dust bag 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.