We produce the adjustable dumbbells ,adjustable barbell, dumbbell set, adjustable barbell set,adjustable dumbbell set, barbell . FR1302 Adjustable Dumbbell Description1. Combine and switchover conveniently2. ... operate and safely in useInclude1. Adjustable Dumbbell x 22. Manual x 1 Adjustable Rate: 11 to 41KGSAdjustable Details ... 41KG1X20FT: 820sets1X40FT: 1700sets1X40HQ: 2000sets FR1302 dumbbell set