Powerful, Symmetrical Grip: Multi-jaw grip minimizes distortion under load. Great for softer materials, such as plastic, copper and brass. Performs the jobs of several different types of pliers and wrenches. Interlock mechanism converts torque load into an intelligent locking feature. Combines the versatility of an adjustable wrench with the simplicity of pliers. Open-ended head can access difficult to reach areas not accessible with a closed-headed wrench. Patented Bionic Gripping technology distributes gripping forces over a larger work surface compared to the jaws of conventional pliers. Versatile and Easy to Use: No tricky knobs or adjustments. Fully adjustable with a one-handed squeeze. Efficient ratcheting by releasing, then re-gripping the object. Replaces 14 SAE and metric wrench sizes, spanning 7/8" to 1 1/4" and 21 mm to 30 mm. Instantly grips pipes, fasteners and fittings from 7/8" to 1 1/4". Comfortable for Most Sizes and Abilities: Incorporates universal design features with enhanced ergonomics. Universal orientation - works in either hand in any position. Fits large and small hands. Soft, cushioned handles. Quality Construction: Made in America. Hardened, cold-rolled, steel-laminate construction. Industrial-quality, electrolysis nickel plated finish resists rust, corrosion and chipping. Balanced spring action provides optimal control. QS 9000 certified manufacturing. Lifetime warranty.