K Lure Turtle Back Blades. These come in a pack of 2! K Lure Turtle Back Blades from Hard Water Guide Service are built to add extra flash, vibration, and attraction to trolling and spinner setups. Their slightly larger profile creates more presence in the water, making them a great option for targeting salmon, kokanee, trout, and walleye. Developed by a Pacific Northwest fishing company with deep roots in Columbia River fisheries, these Cascade style blades are designed for anglers looking to customize proven presentations and trigger more strikes. Images depict a representation of the back and front of the blade.