<p>Grenaoh's carefully designed adjustable dumbbell saves space and time, and does not require multiple dumbbells.</p> <p>Grenaoh adjustable dumbbells can be adjusted between 5.5 and 30 pounds in 16 positions. These 30-pound quickly adjustable weight dumbbells are made of nano-precision silicon steel, and each dumbbell has a custom storage tray. Unlike other brands of adjustable dumbbells, the adjustment mechanism of grenaoh Fitness adjustable dumbbells allows you to adjust quickly and easily. No need to disassemble and reassemble the dumbbell to lock the weight. Just turn the handle to the required weight.</p> <p>With Grenaoh adjustable dumbbells, you can enjoy a complete dumbbell exercise experience in the comfort of your home without going out!</p> <p>Advantage:</p> <p>▣  16 level adjustment weight ［5.5lb, 7.5lb, 8.5lb, 10lb, 11lb, 12lb, 13lb, 14lb, 15.5lb, 17.5lb, 18lb, 21lb, 22.5lb, 25.5lb, 27lb, 30lb.］</p> <p>▣  The counterweight is made of nano high-precision silicon steel</p> <p>▣  12 locks structure design</p> <p>▣  Aluminum alloy ADC12 super strength handle</p> <p>▣  High temperature carbon steel ball with carbon spring</p> <p> Use it:</p> <p>✓ Exercise arm</p> <p>✓ Exercise waist</p> <p>✓ Exercise buttocks</p> <p>✓ Exercise the legs</p> <p>Premium Quality：</p> <p> ✓ PREMIUM Certification with ISO9000, CE, ROHS, LCS,etc. Quality certification authentication</p> <p> ✓ Professional, innovative dumbbells</p> <p> ✓ Quality is our first element</p> <p></p> <p>   Dumbbell size: 18.11*8.66*8.27 inch</p>