Proloc Blocker (1 collar included) "Bumper Plates" and at the same time

and at the same time

Rubberized exterior shell

The American Barbell slam balls are filled with sand to provide an ideal weighting that retains its consistency

The bar shaft is made from precision straightened stainless steel

Proloc Blocker (1 collar included) "Bumper Plates" and at the same timeSecure your bar with confidence! The PROLOC blocker is the accessory to have when you store your bar at a public gym. When the PROLOC blocker is attached to your bar, from the middle of the bar to the end, it renders the bar USELESS. With a chain from the lock, you can further secure it to other equipment in the gym such as racks and weight trees. Fits any bar with collars ranging from 1. 937" to 2. 007" (Fits most bars, Fits all Olympic bars) One