He will probably be OK. Just keep an eye on him for a few days. Any loss of appetite or changes in his poop are indicators he might have a blockage and time to go to the vet.
Ok thanks. I know they chew anything big seriously don't see what's appetising about hair! I've noticed him eating fur that's came off him and out other chinchilla and he seems to have have been ok so fingers crossed he's ok this time x