Wera B Zyklop Magnetic Rail Socket Set 3/8" Drive 9 Pieces SAE 05005450001Socket rail with 9 manual and machine sockets (non impact), 3 8". A smooth rotary mechanism allows a secure hold and easy accessof the sockets. With Take it easy tool finder with color coding by size to help you find the required tool quickly and easily. The railallows temporary attachment to metallic surfaces and, with its twist to unlock function, ensures secure locking and unlocking of thesockets. 9 piece socket set on socket rail, 3 8" Rail with