Installation Instructions: Mount the remote charging post through the body panel to access the battery terminals and charge the battery quickly and easily. Simply mount the posts through a 1‑1/4in hole, black connects to the negative, red connects to the positive, convenient and practical. Direct replacement installation, no complicated tools required, greatly save your valuable time. Mount the remote charging station through the body panel to access the battery terminals and charge the battery quickly and easily. Insulated dust cap is color coded to ensure safety and prevent crossed cables, and prevent some accidental contact when not in use. Built to meet standard specification, strictly follows the factory quality control. Applicable models: suitable for cars, trucks, boats, all-terrain vehicles, etc. Installation role: Battery charger posts are sold individually or in pairs, 3/8inch brass studs. Mount the remote charging station through the body panel to access the battery terminals and charge the battery quickly and easily. These caps for safety and to prevent cables from crossing. 3/8inch Brass Stud, Remote Control Battery Terminal. Tips: The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use Colour:black+red Material:plastic+brass Package Contents: 1 pair x Battery Jump Post Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.