Abstract: A tool for sealing a zipper lock bag comprises a first arm having first and second ends, the first arm defining a first longitudinal axis, a second arm having first and second ends, the second arm defining a second longitudinal axis. The second end of the second arm is connected to the second end of the first arm to define tongs. First and second rollers are rotationally mounted to the first arm near the first end about first and second axes of rotation that are substantially parallel to the first longitudinal axis. A third roller is rotationally mounted to the second arm near the first end about a third axis of rotation substantially parallel to the second longitudinal axis. The third roller is between the first roller and the second roller to engage both the first and second rollers when the first and second arms are squeezed together.