They are characterized by possessing a set of hollow , fixed fangs through which they inject venom , and come in a wide range of sizes , from only NUMBER@1 cm -LRB- LOCATION@1 -RRB- up to NUMBER@2 m in length -LRB- Ophiophagus -RRB- .

They are characterized by a set of hollow , fixed fangs through which they inject venom . There are snakes of different sizes , from only NUMBER@1 cm -LRB- LOCATION@1 -RRB- up to NUMBER@2 m in length -LRB- King Cobra -RRB- .
