Lunkerhunt Impact Thump Bait Electric 3/8 oz. The deep cup of the Colorado blade emits a thump that attracts fish. The cup of the blade also catches water making it easy to keep the spinnerbait in the strike zone at slow speeds. Specifications for Lunkerhunt Impact Thump Bait: Manufacturer: Lunkerhunt Lure Type: Spinner Baits Maximum Depth: Variable Buoyancy: Sinking Hook Size: 3/0 Hook Type: Single Weight: 0.375 oz Tackle Weight: 3/8 oz Fabric/Material: Lead/Rubber Additional Features: Eyelet Double Colorado Quantity: 1 Features of Lunkerhunt Impact Thump Bait Thump and vibration in the water Great for slow rolling shallow water and muddy water Spun wire arm Premium hook Package Contents: Lunkerhunt Impact Thump Bait Lunkerhunt IMSPC02: Impact Thump Bait Electric 3/8 oz