Abstract: A pair of shears comprises a first blade connecting to a first grip and a second blade connecting to a second grip. A first notch is formed at the bottom of the first blade. A second notch is formed at the bottom of the second blade. A round hole is formed on the front portion of the first grip. A tongue is positioned on the upper surface of the front portion of the first grip. The positioning device has at least a first hole to receive a first pivot and a second hole to receive a second pivot. A first and second recesses are formed in the upper inner periphery of the positioning device. An opening is formed in the positioning device to receive the front portion of the first grip. The first pivot passes through the first hole and the round hole to fasten the positioning device and the first grip pivotally.