FerretNation(R) "No Tools Assembly"Habitat Model 183 (Add-On Unit) NEW AND IMPROVED!!!!!!! Designed with Ferrets & Owners in Mind...Midwest Metal has watched very closely how ferrets play, eat, sleep, interact- attending to their every need for maintaining a content, happy and safe lifestyle. Then they began designing the best environment as well as the most user friendly ferret cage in the world...this is the Ferret Nation. Now available with a "no-tools required" assembly. Interlocking panels safely and securely lock in place without the use of any screws, nuts, or bolts! Features: Full width double doors provide maximum accessibility for easy cleaning and feeding Wide expanse shelf and full width plastic pan floor provide maximum play area and prevent dangerous falls Swing-up locking ramps secure sections for cleaning the cage, feeding and separating ferrets Ferret-proof dual-locking door latches provide secure, easy one-hand operation Less mess with the easily removable shelf that is also height adjustable "Happy Feet" ramp covers protect feet and provide traction and no-slip passage between levels Angled ramps are appropriately angled for ferrets safety Sturdy square tube frame and wire construction for maximum pet security Gray Quartz hammertone finish blends well with any decor, and is attractive and durable Includes: 1 pan, 1 shelf,2 ramps,2 ramp covers Choose from 3 different set ups: Single Unit for one ferret, Double Unit for multiple ferrets, Add-on unitto place on top of theSingle orDouble- making even more room for ferrets tolive in PLEASE NOTE: NEW FERRET NATION MODELS (181, 182, 183) ARE NOT COMPATIBLE WITH OLD MODELS (141, 142, 143). HOWEVER ALL ACCESSORIES SUCH AS SHELVES, PANS, COVERS ARE COMPATIBLE WITH BOTH VERSIONS. Item Specifications: Dimensions: Model 183 (Replaces Model 143) 36"L x 25"W x 24 1/2"H Bar Spacing: 1" Wire Guage: 12-guage, 15mm