•Please Contact Customer Service Within 24 Hours after Receiving the Goods, Provide the Order Number, Distribution List, Take Photos and the Actual Weight of the Goods Received. If the Goods Are Not Provided Or Contacted out of Time, the Loss Shall Be Borne by the Customer, with Single-Core Pair, Confirm That There Is Less Wrong Delivery, and We Will Resend It for You. Our Company Is Responsible for the round-Trip Freight.