Feature: These battery clamps are made of durable material, which has good conductive performance and good flexibility. Suitable for car, vehicle, RV and boat, which have a top post battery. The positive "+" sign and the Negative "-" sign are clearly marked on the terminals. With good conductive performance, corrosion resistance, can reduce voltage distortion and transmission loss. Convenient wiring, the connection is firm. The connector clamps can hold gauge cable: 0 AWG, 2 AWG, 4 AWG, 6 AWG. Note: Battery is not included in the package. Specification: Material: Metal Color: Silver Tone Negative Terminal Hole Size: 16mm / 0.63" Positive Terminal Hole Size: 17mm / 0.67" Negative Positive Terminal Size: 10x4.5x1.9cm / 3.94"x1.77"x0.75"(L*W*H) Side Hole Diameter: 11mm / 0.43", 14mm / 0.55" Package Includes:1 Pair Battery Terminal Connector Clamps