Features of Spin Lock Collars
1) The inner hole diameter of these star shaped spin lock collars are 22.5mm;
So they fit standard 1 inch barbell plates and spin lock threaded barbell;
2) They provide an attractive chrome finish;
3) It is worth mentioning that, these threaded barbell collars have a rubber gasket, creating a buffer and protect weight plates;
4) For home, school or commercial gym use.