This whole combo is all you need for your home gym. And here's why. The exercises and targeted muscle groups include: Bench press (incline, flat, and decline for upper chest , middle chest , lower chest , triceps , and shoulders ) Military press for shoulders Leg extension for quads (the front muscles of your thighs) Leg curl mainly for hamstrings and calves , but also glutes , quads , and the front shins Preacher curl for biceps , with Flybird Adjustable Dumbbells Overhead tricep extension for triceps Back row for back muscles with the adjustable dumbbells Sit-ups for abs & obliques I could go on, but you get the point Specifications Olympic Weight Bench Bench weight capacity: 900lbs Leg developer weight capacity: 220lbs Barbell rack weight capacity: 660lbs Materials: premium alloy steel & premium foam Backrest angles: 8 including incline, flat, and decline angles Barbell rack height levels: 5 Curl pad height levels: 5 Distance between 2 standing posts of the barbell rack: 37.8'' from outer edge to outer edge Weight storage posts length & diameter : 21" & 0.98 " Product Dimension (fully assembled) : 61"D x 39"W x 46"H Item Weight : 61lbs 3 butterfly clips are included to fix weight plates Olympic Weightlifting Bar (Click here to check out its own page) Purpose of use: Olympic weightlifting, powerlifting, bench press, squat, deadlift, hip thrust etc.) Length: 86.6'' Weight: 20KG (45.5lb) Load Limit: 1,700lb Color: Black Shaft Length: 51.6'' Loadable Sleeve Length: 16.3'' x 2 Knurl Type: Hill (relatively smooth) Center Knurl: Yes Knurl Marks: Single (IPF) Knurl Depth: 0.06'' Shaft Diameter (where you grab the barbell): 1.1'' Sleeve Diameter (where you load weight plates): 1.98'' Sleeve Style: Ribbed (a little hard on loading & unloading plates, but the plates stay on them more firmly) Rotation Mechanism: Bearing & Bushing Coating: Black Phosphate Cast Iron Weight Plates (Click here to check out its own page) Materials: Cast Iron Thickness: ?10lb: 1.0"??25lb: 1.5“??35lb: 1.5“??45lb: 1.5“? Hole Diameter: 2'', fits all Olympic barbells Plates Diameter: ?10lb: 8.8"??25lb: 10.7“??35lb: 14.3“??45lb: 17.7“? 140LB Set = 10LB Pair + 25LB Pair + 35LB Pair 160LB Set = 10LB Pair + 25LB Pair + 45LB Pair 230LB Set = 10LB Pair + 25LB Pair + 35LB Pair + 45LB Pair