First Wirst Wraps Help!

Any suggestions for my first wrist wraps, probably not super stiff i wouldnt think for my first ones, just looking to get used to them in my presses for my upcoming powerlifting meet (which is also a first), a couple questions also: will they help achieve more weight or just be safer, two what is the need for them on squats never understood that. Thanks alot for your comments.

big nate

Ha thanks what kind and length should i get is my main question.