Liz
Posted : 3/17/2006 1:32:01 AM
There are a few different type of clip devices, one is a Quick Link, and the other, a Spring Hook (or Caribiner)
This Quick Link actually screws closed - very difficult for an animal without opposable thumbs to open...
And the Spring Hook, which opens and closes rather easily. Both are used as rigging hardware, but to keep a crate open/closed, either will work just fine, and can be picked up at any hardware store for about $1.00USD