... Dumbbell,Dumbbell Set,Dumbbell Stand,Barbell,Fitness Equipment,Gym Equipment,Exercise Equipment,Bodybuilding Machine,Training Equipment,Training Machine------------The Bowflex SelectTech 552 Dumbbells have ... pounds. The gradual increase allows the user to build strength slowly or to increase quickly to bulk up. ... x 23cm) each dumbbell. The weight ranges are 5lbs(2.27kg) to 52.5lbs(23.8kg). Starting at ...