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

First Degree Fitness Fluid Rower FDR-02 End Caps (2) (126D)

First Degree Fitness Fluid Rower FDR-02 Bumpers (5) (53B)

First Degree Fitness Fluid Rower FDR-02 Belt Cover Rubber Cap (126D)

Life Fitness GX Rower Trainer

Fitness ERG160 Rower