Iwant to get different color streak clip ins.. should iget synthetic or human?

I'm ordering clip ins..like just little streaks of different colors of hair. .like pink..green etc. I have long hair already and do not need extensions or whatever, .i'm just gettin indivual pieces of different colors hair that ican clip in...and do not need to sow or glue and all that. Now, if iget human hair it costs higher .that synthetic would. .I do not see a difference unless the synthetic hair would be rough. .idk But on the website .for the human hair it says it's soft and straight. .but for synthetic it doesnt say that. .which one should iget? whats the difference? ik synthetic is fake already..but still