Depending on your needs, you can get Sets, Iron and Adjustable. Most Dumbells used today are in Silver and Black. Up to 50% discounts on Dumbells can be found only on iprice. The two best-selling Dumbells currently are the KAP0861 15kg Chrome Dumbbell Set of 2, 32kg Cast Iron Dumbbell Set and Hourglass Dumbbell Set + Rack. The most popular Dumbells are from HomeBuddy, Kettler and SPORTSCO. Dumbells from these brands usually cost about S$ 3.00 to S$ 290.00.