These binder clips work perfectly! They come mixed in their tub, which actually saves me time in using them because I can just toss them back in when I take them off my papers instead of carefully putting them back in the right size compartment. As a teacher, I have many different stacks of paper of differing thicknesses, and the range of sizes included is super useful for my classes of 15, 25, and 30 students. Do be aware, these are relatively small clips, just like it says in the listing description! They perfectly fill the gap between paper clips and full-sized binder clips.
This is my second time purchasing these, and my last set is still holding strong after a year of use. Plus, I love the color, and their unique shade helps keep them from being "accidentally" borrowed by my coworkers and students.