Large indoor / outdoor runs, 4' x 4' inside and 4' x 16' outside. We also have family runs for multiple dogs of the same family, 4' x 6' and 6' x 16'. Heated in Winter and naturally air conditioned in Summer by our 8,000 foot elevation. All runs have solid dividers so dogs are never in direct contact with other dogs, an unsafe practice which can lead to serious injury.