This is an officially licensed Game of Thrones replica made by Valeryian Steel. Oberyn Martell, also known as "The Red Viper", used this way cool spear really effectively - until he went all showboat proud of his skills with it. Let this be a lesson to you and your eyeballs.
The Red Viper's spear is 79" overall with a 26" stainless blade that's 4" wide - yeah, this is almost more of a partisan than a spear - full on hack and stab polearm action. You could take on a Mountain with this! The wood shaft unscrews into two pieces for easy transport.
Each limited production Valerian Steel (tm) replica is individually serialized with a certificate of authenticity and includes a wall-mount wooden display plaque with a silkscreened Kingdom of Dorne sigil.