The KNIPEX 87 01 250 SBA 10" Cobra® Water Pump Pliers are a versatile and heavy-duty tool designed for various plumbing and maintenance tasks. With a unique Cobra® design, these pliers feature hardened teeth for biting and gripping, insulated handles for safety, and a self-locking mechanism for secure operation. The 7/8" diameter and adjustable feature allow for precise and efficient work, while the high leverage and non-slip handles provide comfort and control during use. Made of steel and weighing just 0.74 lbs, these water pump pliers are a reliable and durable addition to any tool collection.