Steel Collar (gorget) AKA Neck Protector

This steel neck protector, called a gorget, is designed specifically to perfectly fit around the Steel Domed Helmet: For Classic Giant:
https://www.roblox.com/catalog/18828987145

This protective metal collar and the Domed helmet are designed to fit perfectly on the Classic Giant avatar body. This will give your character a very sturdy and stout look, the perfect look for a resilient front-line fighter such as a tank or juggernaut.

If you like this helmet, you may also like the Red Juggernaut Helmet:
https://www.roblox.com/catalog/17632564471

The Red helmet was designed for the Classic Blocky avatar body, but is also popular for the Classic Giant avatar users.