Perm Rod Help!

Hey girlies,

I have straight hair just past my shoulders.

I was I thinking to perm (curl) my hair. I had permed it back in 2014 when my hair was longer.

Now I am thinking to perm my hair again but now it is shorter. I cannot remember what size perm rods the hairdresser used in 2014 but I did get nice tight curls like I wanted and my hair texture was like a 3B.

I am going to do this at home and and thinking to buy the blue rods which are 1/4". Would that suffice?

What size do you reccomend?

Thank You.

Please no negative comments.