So I ordered a 15mm and a 25mm mcgizmo, not realizing how tiny the 15mm was. My hope was that I could use the 25 to clip my keys to my pants, and the 15 to clip my car keys and my office keys together. I must say, the 15mm is so small and weak I’m not trusting it with my ed01  The 25mm is too small to clip to my pants, but the perfect size to clip my keys together. So does anyone here actually use the 15, and if so, for what?