Roto-Chip Bait Holder with EChip The Roto-Chip Bait Holder with an EChip has an easy slide locking device and requires no toothpicks, rubber bands, or wires. You can load it in less than 5 seconds, even in the roughest of conditions - which means you spend more time fishing. The embedded EChip bait technology duplicates the electrical nerve discharge of live bait, which triggers strikes by nearby predators. Field tests worldwide indicate the EChip improves catches by up to ten to one. A diagonal fin gives the trolled bait the perfect rolling "wounded fish" action. Available in 11 colors and 2 sizes, it comes fully rigged with tandem 5/0 barbless hooks, 72 inch 40 lb. leader and 75 lb. test bead swivel. Size #5A is for baitfish or strip up to 5 Inch long and size #5B (Big Fin model) for baitfish or strip up to 7 Inch long.