Maybe one of these similar products would be of interest:-

Sunny Health & Fitness Magnetic Rowing Machine with Extended Slide Rail, Full-Body Workout, Low-Impact, Innovative Full Motion or Premium Water Motion and Optional Exclusive Free SunnyFit App

1PC Rowing Machine Seat Wheel Nylon Roller Wheel Bearing 8x36x10mm Drawer Track

Rowing machine seat wheel Nylon roller wheel with bearing 8x36x10mm Drawer track

Rowing machine seat wheel Nylon roller wheel with bearing Drawer track 8x36x10mm

8x36x10mm Rowing machine seat wheel Nylon roller wheel with bearing Drawer track