Made from a combination of steel and hardened plastic, the NordicTrack adjustable dumbbells benefit from a strong and durable construction. Replacing 30 dumbbells in one space-saving pair, these weights move up in either 2kg or 2.5kg increments for workouts that are completely customisable, starting at 5kg and going all the way up to 25kg. A pair of custom-moulded storage trays is included, each clearly marked with easy-to-read weight markings for quick adjustments. Download the iFIT app (30-day trial for new members) to access thousands of trainer-led strength and cardio workouts from your own tablet or smartphone. Elite personal trainers motivate and support you from global destinations, providing an unparalleled home workout experience.