The Decoy - BL-7 Colorado Blade is a lure turning accessory that is designed to enhance the appeal and performance of spinner baits and hollow body frogs. The shape of the blade is designed to catch and stir water to not only create water turbulence and reflect light of its highly polished surface, but to also create winding resistance for spinner baits to keep the lure longer in the stike zone. The key features are as follows: Type: Colorado shaped blade Application: Lure tuning accessory. Colour: Silver and Gold Size: #1, #2, #3 and #4 Quantity: #1 (5), #2 (5), #3 (4) and #4 (4)