• Great adapters for transferring between devices with 8mm and 5.5mm ports such as solar cables, RVs, cars, battery charging devices, etc.
• One end: 8mm male, the other end: 5.5mm x 2.1mm female.
• Package including: DC 8mm Male to DC 2.1mm x 5.5mm Female Adapter x 10, 2 years long time warranty, just contact us if you have any issues about the quliaty or other questions, we will take the issue for you via replacement or refund.