Single drum rollers 1999 6,175 h United States, Salt Lake City, UT
Single drum rollers 2020 422 h United States, Baltimore, Maryland
Single drum rollers 2017 China
Single drum rollers 2021 1,000 h China
Single drum rollers 2021 600 h China
Single drum rollers 2020 China
Single drum rollers 2010 2,840 h United States, Kissimmee, Florida
Single drum rollers 2006 718 h Canada, Abbotsford, British Columbia
Single drum rollers 1990 4,849 h Canada, Boisbriand, Quebec7d
Single drum rollers 2010 1,500 h Spain
Single drum rollers 1996 Romania
Single drum rollers 2017 697 h Netherlands
Single drum rollers 2023 Switzerland, Hasle, Luzern
Single drum rollers 2021 1,324 h China24h
Single drum rollers 2021 1,000 h China, Fengxian District, 上海24h
Single drum rollers 1990 United States, Wylie, Texas
Single drum rollers 2018 2,000 h China
Single drum rollers 2022 800 h China, Hefei
Single drum rollers 2019 1,500 h China
Single drum rollers 2019 1,100 h China