PowerBlock Pro 100 EXP Stage 3 Add On KitIncrease workout versatility and add more challenge to your regular strength training sessions with the PowerBlock Pro 100 EXP stage 3 add on kit. This compact and reliable expansion kit includes 2 x 10lbs (4. 5kg) additional weights per dumbbell and lets you increase your base Pro 100 EXP dumbbell set from 60lbs to 80lbs (27kg 36kg) per hand. It requires the stage 1 Pro 100 EXP adjustable dumbbells and the stage 2 add on kit for a full upgrade. The