★ This is for D-terminal use. If you wish to use it with a B-terminal battery, you will need to use a "B-terminal to D-terminal conversion adapter." (Conversion adapter is not included.) ★ Suitable for most cars, boats, and van batteries. ★ The pile head, which can reduce voltage distortion and current transmission loss, will not corrode. ★ Quantity: 2 pieces, 1 (positive) and 1 (negative) Ideal for installation in tight spaces. Used for replacing corroded or damaged car battery terminals. Usable with terminals of matching diameter. Easy 3-step installation: Remove the damaged battery terminal, cut the connecting cable, and secure it to the terminal. Application fields: Applicable to automobiles, motorcycles, RVs, and boats. ※ Imported products may occasionally have scratches on the exterior. Please understand that this is within the acceptable range and does not affect the product's functionality.