Dumbbells weights go from 5.5lbs to 27.5 lbs and are adjustable in increments of 5.5 pounds, making it easy to dial in on the resistance that best suits your needs. Adjusting the weight is easy, simply move the selector pin to your desired range and start lifting. Included for your convenience is a storage tray for each dumbbell, making for easy and secure weight storage. Build your arms and upper body muscles by performing bicep curls, tricep extensions, and military press, and strengthen your lower body with exercises like lunges and good mornings. Strength training with free weights can develop your stabilizing muscles, increase your bone density, and improve your overall cardiovascular health. Add the Ativafit Adjustable Dumbbells to your home gym to cut down on clutter and experience all the benefits of free weight strength training. Durable material: Heavy duty chrome plated steel provide good experience feeling Adjustable weight: One dumbbell adjusts from 2.5kg to 25kg in 2.5kg increments Space saver: One dumbbell equals to 10 different weights dumbbell by turning the dial, compact design save your space at home.