【Double-Layer Design】2 layer 20.1"L x 12.2"W size provides your cats ample space than a single layer. Easy to accommodate 2 cats at the same time(not exceeding the load-bearing limit). Designed with a hole on the top, allows cat to climb up and down flexibly to increase interest. 【Superior Suction】6 strong suction cups of 8.5mm - 2 vacuum suction cups at the top, 4 powerful suction cups at the bottom. Perfect for all kinds of smooth glass and ceramic tile surface. Double sucker protection, provide safety for your lovely cat. Load-bearing hold up to 50 LBS. 【Premium Material】Hammock frame adopts glass fiber tube, smaller diameter and higher hardness than PVC and PE material. Nylon high-density webbing has smooth surface and excellent tension. Comfortable and breathable fabric also sturdy and scratch resistant. 【Easy to Assemble】No Tools Needed! With easy-to-understand instructions, instantly creat a hammock for your cats to enjoy warm sunshine and beautiful scenery outside the window. Let the cat grow up healthily while enjoying the sunbath. 【Guarantee Quality】We are committed to providing customers with high-quality products. If you feel that our Cat Window Perch doesn't meet your expectations, please feel free to contact us, we'll definitely give you 100% satisfactory service.