... on-time delivery 3.lightweight 31.6 mm Full carbon bike seat post, bicycle parts ♦ Pass EN Test.♦ ... 180g±6g Shipping: door to door service, by DHL/EMS/UPS , usually take 3 ~ 5 working days ... shipping Notice: Normal wear and tear, any damage caused by accident, misuse, neglect, abuse, or stunt riding (veld ... ) is not included in the warrant range. Carbon fiber bicycle seat post, 3k,12k,ud