If you're concerned about collars getting caught there's a collar called Guardian Angel Safety Collar or "Chinook" breakaway safety collar. They have a website at http://breakawaycollar.com/default.htm In the Austin, TX area it's sold by Source Menagerie, http://www.dogstuff.com/supply2.html Janice, janices@jump.net Linsey (newf), Bianca & Sonny (pyrs) http://www.jump.net/~janices/ Leander, TX