1. Selflocking pipe wrench: The spring tension and threesided tooth design of this multifunctional selflocking pipe wrench ensure a firm grip on most types of fasteners, including hex head, wedge head, star, and square head nuts, bolts, screws, and even damaged fasteners. Designed to deliver maximum grip and torque, it is ideal for various piping, construction, and mechanical tasks. 2. materials: The ergonomic handle keeps the user's wrist in a comfortable position, reducing strain. Made from chrome vanadium alloy steel, quenched and forged for hardness up to HRC 60, this wrench is sturdy, durable, and built for longterm use. 3. Selflocking design: Featuring a builtin selflocking mechanism, the doublethreaded teeth securely grip pipes or nuts. The unique pliers allow the wrench to be turned back and repositioned without slipping, enabling quick adjustments. 4. Adjustable opening: The 8inch wrench has a clamping range of 925mm, while the 10inch version covers 1535mm. for pipes, screws, nuts, and more. Easy onehanded operation makes it simple, practical, and efficient—an essential versatile tool for home or travel.