Cloning experts, what do pre-roots look like?

[Guitar Italy Grlz]

also, how long do roots have to be before I can plant? Nobody has answered that one yet. Thanks.

you need 2 wait for the plants roots to begin pushing out a little more
when i was growing and cloning i would wait inbetween 1-2 weeks to see if the roots have gained enough strenth 2 handle the soil shock they get during putting them back into soil groweth