"XMark Pair of 50 lb. Adjustable Dumbbells XM-3307-2 The heavy-duty chrome plated steel construction makes these dumbbells long lasting and easy to use. XMark adjustable dumbbells eliminate the need for multiple dumbbells. Nine sets of weights are combined into one using a unique slide system. Simply adjust the weights from 10 to 50 lbs. by simply moving the adjustment knob to the desired weight. It’s one of the most flexible strength training options available with its unique slide adjustment system. XMark Adjustable Dumbbells are affordable at just a fraction of the cost of traditional dumbbells. Their compact, easy to use design saves space and time. XMark dumbbells are ideal for shaping your arms, chest, shoulders, back, abs and legs. Perform everything from bicep curls and shoulder presses to lunges and squats and much more. Sculpt, build and enhance your body with XMark, the mark of excellence. Included are two 50 lb. XMark Adjustable Dumbbells Specifications: - Weight Range: 10 to 50 lbs. for each dumbbell - Exercises Available: 30+ - Weight Settings: 9 - Weight Settings in pounds:10, 15, 20, 25, 30, 35, 40, 45, and 50 pounds - Weight Each: 50 pounds Arm Exercises: - Standing curls - Concentration curls - Incline bench curls - Scott curls - Overhead triceps extension - Triceps kickback - Lying triceps extension - Hammer curls Chest Exercises: - Flat chest press - Incline chest press - Flat fly - Incline fly - Decline chest press Shoulder Exercises: - Standing shoulder press - Lateral raise - Seated overhead press - Front raise - Rear delt row - Shrugs Back Exercises: - Alternating rows - Wide row - Dead lift Abdominal Exercises: - Ab crunch - Reverse crunch - Lying trunk rotation - Twisting side crunch - Lying leg raise Leg Exercises: - Wide squats - Calf raises - Stationary lunges - Stiff-leg dead lift - Reverse lunge - Side lunge Manufacturer"s Warranty: - One-year limited warranty on all parts