1. Button for lock and release function: (1) push “Up” for locking, to make the adjustable working as a regular one. (2) Push “Down” for release, to make the adjustable working as a ratchet wrench. 2. Light in weight. 3. High torque performance (up to 130% of ASME). 4. Capable of regular adjustable wrench or ratcheting function. 5. Wider jaw opening. 6. Ergonomic handle design provides warmth and friendly to the end-users.