Needles-holders are used for suturing. They are similar to hemostats, but with thicker and shorter jaws. The smaller the needle, the smaller the jaws of the needle-holder need to be. If the needle is too big to be held securely, it is better to use a larger needle holder. Otherwise, the needle may slip or the needle holder may break. Always use the right size of needle-holder. Only jaws with tungsten carbide inserts can be replaced, making them more economical in the long run. They are recognizable by their golden rings.