The Twist includes a space - saving water bottle, located in an adjoining area outside the home, a very
quiet exercise wheel, 1 patented Habitrail lock connector, 2 inner rings and 2 windows.
Features of the habitrail cristal include a large plastic door for easy access, a secure door lock to keep your pet securely inside, a look out deck with ladder,
a quiet exercise wheel, a chew proof water bottle and holder with stainless steel tip, a food dish and a litter guard.