... -300mm/0-12"(customized range can be met)Materail: high quality carbon steel or stainless steelSurface Treatment: the whole rod body ... it easy to readMeasuring Function: ID, OD, depth, Height, Step.Quality Control: CE,ROHS,SGS can be metEco-friendly, non-toxic, harmless ... on the order's quantity, generally need 7-30 daysDelivery Method: by sea or by air (EMS, DHL, TNT, UPS, Fedex ...