The Evolve Lures Rx Vibra Grub flutters and undulates. It appears to move itself underwater in an extremely lifelike motion, triggering fish to strike. Fish it in a variety of ways – on a skirtless jighead, weighted swimbait hook, as a jig trailer or on a drop-shot rig. Sizes: 3" (Per 8), 4" (Per 6). Colors: (001)White Shadow, (003)Leech Blood, (005)Watermelon, (007)Shinetreuse, (009)Green Pumpkin, (011)Juvy Bass.