These Skulls are available for GoPro Hero 9, Hero 8, Hero 5/6/7, DJI Osmo Action and a special Mount Doom Demon for the GoPro Session 4/5.
The Hero Skulls are incredibly beefy, offering more front end protection than any other mount.
Dont forget you can get adjustable skulls too, under Adjustable GoPro Mounts.
DrunkMasterFPV Designed the original skull for the Hero 5/6/7 and then the 8. These are remixes made with his approval! (thank you DrunkMaster)