552 Dumbbell Adjustable dumbbell-DB552 factory with lowe price adjustable one pc per brown box. 552 DumbbellCarton Size:57*35*32CMPacking: 1pc/cartonG.W./N.W.: 58/52.5LBSQTY:447PCS/20FT 980PCS/40FTFeature:52.5 lb adjustable dumbbellWeight Settings (lbs.)5, 7.5, 10, 12.5, 15, 17.5, 20, 22.5, 25, 30, 35, 40, 45, 50, 52.5Powerful results at the turn of a dial.