Study square matel tube structure, with well powder coating to make it more strong to survive inclement weather, the PE wicker is much stronger and high quality with UV-resistant that can serve long time at summer. Even if your pets scratch on it will not leave an obvious mark on it as well. The cushion is made of 100% polyester fiber, it will survive longer under your lovely pets scratching and stretching. An elevated design prevents dirt and water soakage from underneath so you can keep the interior clean. Tucker Murphy Pet™ provides shelfters for your lovely pets from harsh sunlight. The frame is make of square metal tube, rattan with PE wicker, the cushion is 1.97" thickness, with stuffing of 100% polyester fiber cushion, it will survive well from pets scratch.