Bass Pro Shops Spinnerbait Blades are precision-crafted of top-quality solid brass for superior balance and vibration on your favorite rig. Mirror-quality polished finish pumps out maximum flash. Upgrade your baits with these replacement Colorado blades today, and drive those big fish wild. Sizes: 3, 3.5, 4, 5, 6. Colors: Nickel, Gold. Type: Spinnerbait Blades.