Traveling block is the freely section of the block and that contains a set of pulleys or sheave through which the drill line (wire rope) is threaded and is opposite the crown block. It include the single shSpecification: Feature: 1. Designed to API 8C 2. Frame used the High strength steel material 3. Main hook install the safety device 4. Main parts are used the high strength alloy steel. 5. Sheaves groove through the heat treatment, Improve surface hardness, wear resistance and service time.