The Picasso Suijin Scrounger Heads (water god in Japanese) was developed with Elite Series Pro and "scrounger" guru Aaron Martens overseeing every step. The proprietary formulation of the bill material is crucial for this type of lure to achieve its full potential based on water temp and the plastic trailer being used. The head design insures proper cupping of the bill material to optimize the swimming/kicking action of plastic trailers. Double tapered smooth cylinder bait keeper provides easy placement and keeps your soft plastic secure without tearing, while the concave collar helps prevent fish from pulling them down. Equipped with a Gamakatsu 2X strong hook to accommodate a variety of plastic trailers from small "flukes" to larger straight tail jerk baits. Each pack includes 2 extra replacement bills of different thicknesses to achieve a tighter or wider swimming action for varied trailer size or water temperature. Bill Size (Quantity)Thickness Head Sizes B Bill (2)20, (2)35, (1)30 1/8oz with #2 Hook A Bill (1)25, (2)30, (2)35 1/8oz, 3/16oz D Bill (1)30, (2)35, (1)40, (1)45 3/16oz, 1/4oz, 3/8oz SK Bill (1)30, (2)35, (1)40, (1)45 1/2oz K Bill (1)30, (2)35, (1)40, (1)45 3/4oz SFJ Bill (1)35, (1)40, (1)45,(1)50, (1)55 1/2oz, 3/4oz FJ Bill (1)40, (1)45, (2)50, (1)55 3/4oz, 1oz, 1.25oz Made in the USA. Pearl White1/8oz & 3/16oz - 3 Pack1/4oz, 3/8oz, 1/2oz, 3/4oz, 1oz & 1.25oz - 2 pack