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The used materials are new and natural cotton rope which is non-toxic and without any odor as sometimes this material has.
The bottom is 19.7 x 15 inches large enough for most cats.
The total height is 39 inches and the brackets that come with it enable several ways of installation.
Macrame products are in most cases very easy to maintain and will last a long time. I hope you will find the one that fits your needs.