1. Seller to Authenticator (2-5 Days) Seller Handling: The seller has their own handling time 

(usually 1-3 business days) to drop the item off. 

Inbound Transit: The item is shipped to the authentication center. eBay usually provides the seller with an expedited label (FedEx or UPS), which takes about 2-3 days. 

 2. The Authentication Process (1-3 Days) Intake: Once the package arrives at the facility, it has to be scanned and "checked in." 

Inspection: Experts typically aim to complete the physical inspection within 2 business days of receiving it. 

Backlogs: During peak seasons (like the holidays or major sneaker drops), this stage can stretch to 5+ days. 

 3. Authenticator to You (2-4 Days) Shipping: Once the item passes, it is repackaged and shipped to you. 

Speed: eBay uses expedited, tracked shipping for this leg of the journey. 

Signature: For high-value items (typically over $750), a signature is required, so someone will need to be home to receive it.