Features: Product Name: Car Battery Terminals Material: tinned pure copper. Color: red (+) and black (-). Rated voltage: 12V 26V. Output power: 6V 12V Used for battery size: 45Ah-200Ah. Hole Size: 18mm, negative: 17 millimeters. Quantity: 4 pieces (2 x positive + 2 x negative). Total dimensions: approx. 55 x 35 x 45 mm (L x W x H). Features: 1. 3-way battery terminals (6mm x 2 and 8mm x 1) can improve conductivity and ensure perfect contact performance, as well as voltage distortion and transmission loss. 2. Positive and negative poles are provided with clear markings for easy identification. 3. The battery terminals are suitable for most vehicles, but also for most cars, boats, trucks and 6V/12V batteries. < /p> Installation method: 1. Remove the copper ring from the original vehicle's battery and disconnect it from the battery cable. 2. Check whether the motor column is oxidized and cleaned, then distinguish the oxide layer to increase the electrical conductivity of the motor column. 3. The car battery terminals attach to the engine bars and tighten the nuts. Contents: 4 battery connection terminals. Tips: Due to the light and screen difference, the item's color may be slightly different from the pictures. Since measurements are taken by hand, the sizes assigned may vary by 0.1 to 0.3. Your satisfaction is our greatest follow-up. Do not hesitate to contact us if you have any questions. We will respond to you on the working day.