iROTEC IROTEC Screw Dumbbell Shaft 45 Since there are no genuine collars, Four TOFEIC spring collars are included. Diameter: 28mm Shaft Length: Approximately 45cm Set of 2. I was able to use it with the 28mm diameter plates from my Fighting Road set, but this is not guaranteed. Please assess the condition from the images and purchase if you understand that this is a used item. Shipping will be wrapped in bubble wrap, but it will be a simple package. Instant purchase without comment is welcome. #iROTEC #IROTEC #BenchPress #Bodybuilding #Physique #Weight #HomeGym #MuscleTraining #Dumbbell #Barbell #Plate #FightingRoad #Training #TOFEIC #SpringCollar #DumbbellShaft #Bar #Adjustable