This is a replacement kit for Tineco Floor One S3 and iFloor 3 wet dry vacuums. You get 4 roller brushes and 4 HEPA filters, which should cover multiple cleaning cycles before needing replacements again. Great if you own one of these models and want to keep extras on hand. The brushes help with cleaning performance and the filters keep your air clean. Both are standard maintenance items that wear out over time with regular use. New, unopened condition. Ships fast.