ITEM NAME:Flex extension bar set 3/8" driver tool Flexible Shaft 2pc Descriptio n Description Features Drop forged, heat treated chrome vanadium steel, with flexible spring steel shaft Spring-loaded ball bearing locks on to sockets Flexible steel spring shaft works in areas that other extensions can't reac Specifications: Material: Steel Colour: Silver Size: 305mm*9.5MM 200mm*9.5MM Product List: 3/8 Conversion Head Length 305mm*13/8 Conversion Head Length 200mm*1 We offer you what you need! 2 pc Flex extension bar set 1/4" and 3/8" driver tool Flexible Shaft.2 pc Flex extension bar set 1/4" and 3/8" driver tool Flexible Shaft. We'd like to settle any problem in a friendly manner. Flexible steel spring shaft works in areas that other extensions can't reac.