For color choices, see Alternate ImagesSo you say you don't have space for a Cat Tree?? Well then try our space saving "Hanging Cat Playgrounds". We offer many different designs and colors to choose from. Let your imagination run wild while you create the purr-fect playground foryour pet.This is our "Hanging Wall Mounted Cat Tubular Hideaway". It is 12" in Diameter and a whopping 18" long with a flat top for lounging on and a diamond hole for peeking out. Fully carpeted inside and out. Our "Hanging Ramp Ways" will work purr-fectly as a run way to this Tubular Playground. Your cat will racing through this piece like the Holland Tunnel!!12" Diameter 18" LongFlat top for loungingOPTIONAL!  Add a Wall Cup to this item at NO additional ship cost!16.5" wide with a curved lounging area for your cat to cuddle into. Fully carpeted inside and out. Our "Hanging Ramp Ways" will work purr-fectly as a run way to this sleeping perch. Your cat will sleeplike a baby in this piece!!16.5" W x 8.5" H x 11.5" DInstallationThe Wall Climbing units attach to a wooden mounting bracket that is hidden inside the unit. You start by mounting the wooden 2x2 bracket to your wall then attach the Wall Unit to the wooden mounting bracket. All hardware is included for Drywall and Plaster Wall application. Hardware for concrete walls is not included but can be purchased at any hardware store for under $5.Here's a great example of combining cat wall shelf components together!  This gentleman actually may have them placed a bit too close - they can also be spaced out more because the cats can jump from piece to piece.To speed up the process of building your order, please select a first and second choice for carpet colors. Remember, the shades of carpet may vary from what is shown here for a variety of reasons. We will do our best to match the carpet you get with the colors you choose.If you have no 2nd choice , please choose the same color for both 1st and 2nd choice!.