Single drum rollers 1990 United States, Wylie, Texas
Single drum rollers 1996 Canada, Boisbriand, Quebec
Single drum rollers 2021 428 h United States, Manassas Park, Virginia
Single drum rollers 2018 1,950 h China
Single drum rollers 2022 China
Single drum rollers 2019 2,100 h China
Single drum rollers 2017 3,300 h China
Single drum rollers 2018 United States, Salt Lake City, Utah
Single drum rollers 1986 Australia
Single drum rollers 1,722 h United States, Annapolis, Maryland
Single drum rollers 2018 725 h United States, Baltimore, Maryland
Single drum rollers United States, Wayne, Michigan
Single drum rollers 1992 7,750 h United States, Wayne, Michigan
Single drum rollers 2016 3,500 h China7d
Single drum rollers 2017 China
Single drum rollers 5,510 h United States, Rockville, Virginia
Single drum rollers 1,542 h United States, Annapolis, Maryland
Single drum rollers 1985 568 h Poland, Staszów
Single drum rollers 3,400 h United States, Boring, Oregon