The SP Tools All-in-one Fluid Stopper 2-pc Set, No. 13700, allows technicians to stop fluid draining from various lines found on vehicles, heavy duty trucks and equipment. These clamp style stoppers feature four different sizes for various applications including brake lines, hydraulic lines and smaller coolant lines. This set features four sizes in one compact clamp: 8mm, 10mm, 12mm and banjo. These tools are constructed of high-quality composite plastic and provide a quick and easy way to stop dripping lines.