faucet lever for triangle type handle

thingiverse

It converts a triangle-shaped metal faucet handle into a lever-type handle. The triangle type of handle appears to have been used only in Japan a few decades ago... -- This is an unusual part that can be put on a triangle-shaped faucet handle and converted into a lever type handle, even though the original handle might be rare or no longer available. It's worth noting that you can also buy replacement handles at home centers, which would likely provide better strength and stability.