1. High-quality materials: 3D vortex carpet is made of high-quality polyester and non-woven materials, which is soft, comfortable and durable. 2. Bottomless Pit Rug: The black and white shading pattern gives an optical illusion, creating a 3D effect that makes you feel like you are in a bottomless pit. The 3D effect of a swirl rug is less noticeable to the naked eye. The 3D effect is better when the swirl pad is used with other reference objects and when taking pictures. 3. Optical illusion carpet: The swirl illusion carpet is an eye-catching home decoration. You can use it to interact with your pet, test your pet's IQ, your pet may detour or jump over it. 4. Easy to clean: 3D illusion carpet is easy to clean. You can use a vacuum cleaner or a dry cloth to clean. Note: After receiving the product, please hand wash and dry it. Iron it. 5. Suitable occasions: The size of the illusion rug is: 31 X 31 inches (80 X 80 cm). Optical illusion mat is suitable for decoration in living room, bedroom, study room, office and so on. If you have any questions, please feel free to contact us.