Natural Sisal wrap - The curved lounging surface is wrapped with high-density natural sisal for durability and scratch resistance. - It provides an opportunity for cats to rest, exercise, sharpen their paws, and pass the time, while potentially reducing the need for a separate scratching board. Curved surface and suspension design - The open-top, shelter-free design supports easy jumping onto the shelf. - The curved concave surface offers a comfortable lying position and sunbathing spot for your cat. Safe and firm construction - Built with a pine wood frame, supported by upper and lower iron brackets. - Four high-strength PVC suction cups grip smooth surfaces securely, with a weight capacity of up to 30 lbs. - When the suction cups are kept parallel (top and bottom), maximum stability is achieved and detachment is minimized. Easy installation on smooth surfaces - Install four suction cups at the two ends of the upper and lower brackets, then fix the lower bracket to the upper bracket. - Compatible with smooth materials such as glass, ceramic tiles, stainless steel, mirrors, and similar surfaces. Important installation note - Before mounting, soak each suction cup in warm water (at least 60 C) for 5 minutes to increase suction power. - In winter, suction cups may harden and lose some suction strength; pre-soaking helps mitigate this effect. Specifications and features - Material: pine wood frame, iron brackets, PVC suction cups, natural sisal covering. - Weight capacity: up to 30 lbs. - Surface: curved sisal lounge for scratching and lounging. - Mounting: designed for smooth surfaces such as glass, tiles, stainless steel, and mirrors. Use scenarios - Window sunbathing: mount on a sunny window to let your cat enjoy the warmth and view. - Scratching and exercise: the sisal surface encourages paw sharpening and light activity. - Space-saving pet furniture: ideal for apartments or rooms with limited floor space, using vertical mounting to free up floor area. This product stays true to its design by combining natural sisal durability, a curved comfortable surface, secure suction-based mounting, and versatile compatibility with common smooth surfaces.