Review on Cat Window Perch and Hammock Seat with Extra Large Screw Suction Cups: High Weight Capacity, 360° Sunny Seat for Indoor Cats by Debbie Williams

Follow the instructions and you won't have any suction problems. The material is not very good, but it does the job. If you put a small blanket over him, it will protect him and add softness. Both cats love it and spend most of the day napping. Update June 2021: After 6 months one of the suction cups where the small string/rope is attached broke and my kitten fell to the ground. Rough awakening, that's for sure. But we've had over 100C weather and the sun shines through that window most of the day so I'm honestly not surprised. I am ordering 2 more so the kittens may not share and I will try other windows.