5mm is a little bit bigger then Albert's stone. Poor thing. I wish we could figure out why they get these horrible stones. Is Frasier staying at the vets? That maybe is best for now. I made a contraption out of fleece & velcro to keep Albert from pulling his sutures. If you're interested in knowing about it, let me know. Hope he is going to be ok. We will be praying for you. Take care. ***JAIME*** & Albert always & forever in my heart. http://www.piggiepages1.blinkz.com/