Material and health safety - The wooden board may have a slight odor. It contains no formaldehyde and does not affect health. After 3-5 days of use in a ventilated area, it can accommodate 2-4 cats playing at the same time. Cleaning and hygiene - The carpet is made of anti-mite and anti-bacterial fiber material. To remove hair, simply brush daily. Comfort and window viewing - Your cat will feel as safe as if they were in your arms. The soft plush allows your cat to enjoy the view from the window. Safety and protection - Safety always comes first. The soft plush cover provides a skin-friendly surface and protects your active cat from falling. Use scenarios - In the living room as a multi-cat play perch for 2-4 cats. - As a window perch to give cats a comfortable place to observe the outside world. - In a ventilated area initially to dissipate any odor from the wooden board before regular use.