The original Power Shakey Head. The X-Lock(TM) is the hottest jig head in fishing. Never before have you been able to shakey head large plastics. Bass Edge coined the term "Power Shakey Heading" while talking about the X-Lock(TM). It is going to add a new dimension to your fishing arsenal. Check out the Maximus on the X-Lock(TM), it stands straight up making it irresistible for those big bass. The X-Lock(TM) jig comes with a top-quality spring, a large razor-sharp extra wide gap hook and chip resistant finish. 1/4 oz 3 to a package, 5/8 oz 2 to a package.