For Jackery Ravpower Goal Zero X-Dragon Golabs Bluetti Milin Votman, 2 Set. Product Details 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 female, the other end: 5.5mm x 2.5mm male. One end: 8mm male, the other end: 5.5mm x 2.1mm female. Exactly what you needed to switch between a different size cable ,use for another solar generator set up. Package including: DC 8mm Female to DC 2.5mm x 5.5mm Male Adapter x 1.. DC 8mm Male to DC 2.1mm x 5.5mm Female Adapter x 1 Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.