The containers are made of impact-resistant plastic. Replaceable disposable cartridges, which are inserted into the containers, make it possible to use the containers repeatedly. The containers have a magnetic holder for the brush, as well as an adjustable handle (in bucket models), made of a special polymer for rubber products. By connecting the holes on the handle with the protrusions at the bottom of the buckets at the desired distance, the bucket can be fixed on the arm or belt, which gives additional convenience in working with the bucket.