Quick Adjustment: Spring-loaded push-button design allows for fast and easy adjustments and a secure fit, faster than traditional groove joint pliers. Just push the button and adjust the lower jaw High Jaw Capacity: With up to 50 mm jaw capacity, the 305 mm groove joint pliers allow for a comfortable fit around all sizes and shapes of fasteners and materials. 12 adjustable positions provide increased flexibility and gripping comfort Optimum Grip: V-Jaw design provides multiple points of contact for stronger grip on objects of all types and sizes. Powerful angled teeth for secure grip and long tool life, they can bite into pipes, rods, shafts and fasteners of flat, round, square and hex shapes Comfort Grip: This pliers wrench is ergonomically designed for a secure and non-slip hold. Plastic dipped bi-material handles provide comfort and control, reducing hand fatigue during extended use Longer Life: WORKPRO plumbing tools are made from premium Chrome-vanadium steel for high strength and durability. The polished jaw and black phosphating make the pliers more corrosion-resistant, ideal for plumbers and DIY homeowners, Manufacturer: Hang Zhou Great Star Industrial Co.,LTD