I didn't realize they were even on Amazon! I was looking at getting them from olivegreendog.com or smartiedog.com. At roughly $50 per they are kind of pricey--I'm wondering how well they hold up. I'd also like to know if they would be manageable for a very small dog (4 lbs). I've read some reviews on sites in the UK where people talk about them being a little stiff for the dog to manipulate but they didn't mention how big their dogs were.