We produce the adjustable dumbbells ,adjustable barbell, dumbbell set, adjustable barbell set,adjustable dumbbell set, barbell . FR1303 Adjustable BarbellDescription1. Combine and switchover ... operate and safely in useInclude1. Adjustable Barbell x 12. Manual x 1 Adjustable Rate: 19 to 49KGSAdjustable Details: ... 49KGMOQ: 50Sets1X20FT: 1000sets1X40FT: 2070sets1X40HQ: 2400sets FR1303 barbell (Dumbell)