Sutong China Tires Resources TU4005 HI-RUN Heavy Duty Lawn and Garden Tube, 13x5.00-6 Tr13-Inch Small lawn and garden tube Fits 4.10/3.50-5, 3.50-5nhs and 4.10-5nhs Tr87 valve stem 4.10/3.50-5-Inch Tube