The SPINMASTER is equipped with propellers on the front and back, creating fish-attracting bubbles and a surface disturbance during the retrieve. The bait's internal counter-weight chamber also causes the SpinMaster to roll on its side, better mimicking a baitfish floundering on the surface. Combine that with the actual sounds of a baitfish from the EBS TechnologyTM and you'll draw fish from double the distance of traditional prop baits.