Ordinary canvas weighs within 5 kg. No Velcro Cat Hammock Window Seat，Space-Saving Cat Bed for Big Cats Special Suit Reliable-Available for Cats360°Sun，Suitable for Large Cats。 🐱 Advanced Materials-The Frame Adopts Advanced Pipes.，No Deformation，Good Gloss，Rugged。 🐱 Tough and Easy to Handle-Removable Outdoor and Sturdy Fabric Mat，Tougher，Dry and Easy to Maintain。 🐱 Comfortable Cat Bed-Premium Set with Flannel Protection Mat Allows Your Cat to Enjoy the Sunshine Comfortably。 🐱 Screw suction cups can pat the air more cleanly and better adhere to the wall. Compared to the 25% fall off rate of the old regular suction cups, the improved suction cups has only about 5% fall off rate. Suction cups that can hold up to 60 LBS. Ordinary model below 2.5KG Upgrade models below 6KG Ordinary canvas-no magic paste