Made of high quality materials for long life. Top quality product. As part of normal maintenance, it can be easily removed and replaced. Empty the tank quickly and efficiently without releasing dust that is harmful to the environment. Adjusted to work best with your vacuum cleaner. It is best to replace the spare parts every 2-3 months to keep the machine running at peak performance. Suitable for Vorwerk Kobold VK 135 VK 136 Package Content: 4 x Dust Bags Item Details: 100% brand new and high quality. Made of high quality materials for durability. Empty the tank quickly and efficiently without releasing dust that is harmful to the environment. As part of normal maintenance, it can be easily removed and replaced. It is best to replace the spare parts every 2-3 months to keep the machine running at peak performance. Adjusted to work best with your vacuum cleaner. What you will receive is shown in the pictures, please check the pictures carefully before your purchase. Suitable for Vorwerk Kobold VK 135 VK 136. Package includes: 4 x dust bags. Note: 1. The actual color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight dimension difference due to different manual measurement.