Jang JP-1 seed rollers

Hello, I'm planning on buying a Jang JP-1 Automatic seeder this year and I was wonder what every one uses for rollers.
I'd like to use it for carrots, beets, lettuce, peas, radish and herbs. Any replies would be appreciated.
Thanks and have a great day

I'll post a list of rollers I'm buying for anyone that may find this in the future.
xy:lettuce and carrots
x:kale,radish, onion and dill
f:cilantro and spinach

If I remember I'll post an update in the summer after I've used them

I don't have a JP-1, but I do have a Jang TDR. I got frustrated with how expensive the plates are, and how, quite often, the size I need just doesn't exist. I actually started making my own plates out of plywood. There's not a lot of stress being applied to the plate itself, so this works. I don't know if the same can be said for the rollers on the JP-1.