1.Length:4.8"/12.2cm 2.Weight:1.2oz/34g 3. Built-in steel balls: The built-in steel balls may buzz when the lure swims. Such sound can attract the attention of fishes and trigger more bites from them. 4.Metal connection: The metal connection allows it to withstand strong bite forces. 5.Eyes: 3D design. They are realistic-looking. 6.The surface of the lure is coated in the same color as a real fish. The bionic one appears uncannily lifelike.