[Good sealing] —- The dust bag is made of melt-blown fabric and non-woven fabric, combined with the cleaning station, it can effectively capture 99.7% of ultra-fine dust down to 0.3 small particles.[Auto Lock] —- It automatically locks when you lift the dust bag, completely sealing the dust bag's inlet so that dust and dirt remain inside the bag.[Tips for use] —- For your robot to function optimally, clean and replace parts in time. If you have allergies and pets, it is recommended to change the dust bag every 2-3 weeks.100% Made of high-quality materials, environmentally friendly materials, soft and durable to use.Replace the old, broken or dirty dust bag and improve the cleaning robot's cleaning ability and effect.Compatible with model:For Bot X30ProFor Bot X30Pro UltraFor Bot X30Pro PlusMaterial: non-woven fabriccolor: Dark gray + whitePackage contents:8 x Dust bagOnly 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 allowed measurement error is +/- 1-3 cm.