Weight one end of a wacky-rigged worm and you have a Neko rig. The VMC Half Moon Wacky Weight is made especially for this deadly presentation, which takes your rig down quickly and gives the impression of a prey fish feeding on the bottom perfectly natural and perfectly vulnerable. This weight is more secure than a traditional nail, as it has a series of conical ribs to firmly anchor itself in place without damage to the worm. Hook placement is up to you, but the VMC Half Moon Weight can be easily inserted into either the head or tail of your worm to create your desired effect. Unpainted. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Weights.