By using the principle of wetting the cotton core, the top cotton core is kept moist at all times, thus achieving a hydrating effect. The advantage of this is that it can retain moisture for a longer period of time. It is suitable for jumping spiders, tarantulas, praying mantises, arboreal animals, and other small pets. With strong neodymium magnets embedded inside, installation is simple and ensures that aesthetics are not compromised. This design is ideal for use as a decorative element in small animal enclosures without sacrificing functionality.