Replacement Rings for Chinese Device

[toolfox]

I just purchased my first device from dhgate, but the ring is too small. I can fit it on with some effort, but I definitely need something bigger. The cage itself is just the right size. Where can I find a larger ring that is compatible with this device? I can handle the measuring part myself, but I want to make sure whatever ring I buy fits this cage!
The device can be found http://www.dhgate.com/product/stainless ... ail-1-null

[slave d]

If you go to your original order you should be able to ask the question of the supplier and you'll probably find they do bigger ones. Also i'm pretty sure i remember finding a site that sells replacements in different sizes and styles, try some Google searches.

d