The bench ships assembled and folded. The only assembly required are the foot-support & bench feets needs to be attached.Step:-Unfold the main frame-Install 2 Bench Feet (Stabilizer: Front Foot Tube and Rear Foot Tube)-Install the [Foot Support]Finally, you can adjust the four [Foot Caps] before you start using it ifyou feel the bench is unstable.

Yes, it is removable and you can use the bench without it if you prefer. As a quick alternative, it also folds up easily under the seat, leaving leg and foot area completely clear for loop band leg raises.

Yes, it can be both inclined and declined. It has all angles that would be desired during a workout.Under the back there is a knob you pull out and then lift or lower the back to the desire height you want.

Both of them:FB139 and FB149 are popular as both are easy to assemble and fold for easy storage. It support an effective strength training at home whether you are a beginner or an enthusiast.DifferencesThe maximum weight capacity. (139: 600lbs 149: 800lbS)2 Incline positions provided by FB149, support the incline bench press etc. [Back Options supports: 23°, 37°, 51°, 85°, flat, -10°, -35° )] ; FB139 doesn't have the incline position.FB149 is an upgraded version on FB139, lots of customers tend to purchase 149 as it has a higher weight capacity and incline option. You can choose the weight bench according to your own needs.Check out FB139=>>>