Features: Compatible models like BL1860B, BL1850, and more, ensuring a reliabled connection for your devices. This battery clips cable ensures optimaled conductivity and durability, with a 4cm battery contact spacing for secure attachment. for DIY enthusiasts, automotive professional, and outing adventurers who rely on portablely power solution. Perfect for use in automotive applications, camping trip, or any situation you need car booster starting . The red clamp connection to the positive and the black clamp to the negative, allowing seamlessly current input or output for various electronic needs. Specifications: Type: Battery Clamp Car Booster Clips Support：18V 21V Battery Adapter Suitable for batteries, including BL1860B BL1860 BL1850 BL1840 BL1830 LXT400 BL1415 BL1420 BL1815 BL1820 BL1845 (batteries not included) Battery Contacts spacing about 4cm/1.57in Cable Length about 40cm/15.75in Package Includes: 1PC Battery Clamp Car Booster Clips note: Please allow 1-2cm errors due to manual measurement. Pictures may not reflect actual color due to different monitors.