Booyah Hard Knocker Lipless Crankbait 2 1/2in 1/2oz Blue Shiner. Hard Knocker lipless crank bait features top-of-the-line cutting edge color patterns an aerodynamic shape that casts a mile and top-quality components. For sound the Hard Knocker features multiple rattles for loud attraction that mimics the sound of escaping panicked baitfish. Specifications for Booyah Hard Knocker Lipless Crankbait: Manufacturer: Booyah Tackle Weight: 1/2 oz Length: 2 1/2 in Size: 2.5 in Package Contents: Booyah Hard Knocker Lipless Crankbait Booyah BYHKR1207: Hard Knocker Lipless Crankbait 2 1/2in 1/2oz Blue Shiner