The UUK full metal trainer is made and built the same way your custom UUK is.
Same blade steel, same handle material.
Pros of practicing with a full metal trainer:
DURABILITY: Super strong, this trainer can take a beating for years to come
WEIGHT: Obviously heavier than your combat blade, the regular thing will feel like a feather when you switch back to it.
FEEL: Full metal trainers feel like the real thing, unlike aluminum, wood or plastic.
LOOKS: The full metal trainer is coated with a bright shiny “training” blue finish. Cannot be mistaken for a live blade.
100% handmade in the USA.