CONVENIENCE: The wide jaws increase the clamping area and strength, making it easy to deal with clamps in various difficult conditions such as strong, aging, rusting, freezing, etc Options available Locking mechanism allows you to adjust and secure the size of the plier jaws by pushing the spring button to quickly open the clamp to protect your fingers Meterials Heavy Duty Hose Clamp Pliers are made of thick, high temperature, high hardness and rust resistant material Features: Plier jaws are manufactured with a metal welding process, which is durable and wearable, no need to worry about damage or falling off during use, Manufacturer: YUEHUINIAO