Ear Tattoo Size

[SarahMelisse]

I have found quite a few places that sell the clamp style ear tattooers, but what size letters/numbers should I get for a large breed (8-10 pounds) rabbit?
From what I've seen there is: 1/4", 3/8", 1/2", 5/8"

 

[hemet dennis]

I have found quite a few places that sell the clamp style ear tattooers, but what size letters/numbers should I get for a large breed (8-10 pounds) rabbit?
From what I've seen there is: 1/4", 3/8", 1/2", 5/8"

Any will do unless you're old and going blind like me then you'll need the bigger one.