All of these parts are authentic genuine Bowflex parts. Each part will fit the left or right side of the 1090 dumbbell.
Bowflex 1090 SelectTech Dumbbell Replacement #4 (2nd large) Weight Plate (10lb)
Bowflex 1090 SelectTech Dumbbell Replacement Cover Spring and Lever for Endcap
Bowflex 1090 SelectTech Dumbbell Replacement Weight Guard Tab Handle Part
