Abstract: A fitness exercise bar system and method which includes a rod and interchangeable weight rings which attach to each other and to a collar ring attached to the rod by using complementary connectors formed along a circumference on the surface of each side of each weight ring. Each weight ring is at least partially surrounded by a soft-coating which compresses under pressure allowing the complementary connectors to be moved closer together. The complementary connectors are of the kind which connect and release by first being moved together and then being pushed apart. Since the soft-coating can be compressed and then released, the soft-coating enables the user to press the weights together, attach the connectors and then release the weights thereby locking the connectors and thus, the weights, together.