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static weights focus on linear movements that train large muscle groups
high-intensity use
First Degree Fitness Seat Back Kit package App sync when you wantFluidRower Seat Back Kit Lumbar support that has your back Created with user needs in mind, the Seat Back Kit is the ultimate solution to your posterior requirements. Perfect for the injured, deconditioned seniors, or those who just want some extra lumbar support, the Seat Back Kit instantly turns your FDF indoor rower seat into an office chair like design. Ergonomically contoured to match the natural shape of the posterior, the Seat Back Kit is