I had to get a case for my iPod Nano because it kept getting small scratches along the back of it. So I went to Staples and found the DLO HybridShell case for $15. There were others there that cost $20 and $25, but I decided on this one for one reason only, the non-slip back. If you’re an owner of the a light iPod such as the Nano or Shuffle, you will know that it’s very easy to forget your head is attached to earbuds which are then attached to your iPod sitting on your desk. A slight yank of the head back, and your iPod tumbles to the floor. This case helps prevent this by gripping to the surface, making it less likely for you to break your iPod. I just love simple things that make a huge difference.