Can you take out a sim card and insert it without it breaking? Iphone 4s?

Quick question, i wana take out my sim card on my unlocked iphone 4s (sprint to tmobile) will it remove the unlock if i take out the sim card and put it back in?

My iPhone 5c is unlocked and with Att(originally was used on Verizon) and trying to find the best coverage I have swapped out Verizon, Tmobile, and ATT the last few weeks. All have worked, and I haven't broken one of them. Just be careful.

No it will not.