40pcs, Size: 5×3 cm / 1.97×1.18 in (L×W), Thickness: 3mm / 0.1 in. With its ultra-thin profile, it becomes virtually invisible after application. This perfectly solves the problem of bulges and uneven surfaces caused by traditional thick tapes or foam adhesives, allowing your items to adhere more closely and achieve a sleek, seamless look. Super Strong Adhesion, Holds Firm & Lasts: Features a high-performance adhesive delivering exceptional instant stick and long-lasting grip. Securely holds items on smooth surfaces (tile, glass, metal) or lightly textured ones (walls, plastic, wood) with reliable weight-bearing capacity. Waterproof & Weather-Resistant for Longevity: Offers excellent waterproof performance, effectively resisting moisture and splashes. Maintains strong adhesion in humid areas (bathrooms, kitchens) or outdoors, ensuring it won't easily fail or deform for extended durability. Pre-Cut Rectangles for Precision & Ease: Conveniently pre-cut into clean, uniform rectangles. No messy cutting required! Simply peel the backing and apply for quick, precise, and effortless installation. Endless Versatile Applications: Your ultimate household essential! Perfect for mounting pictures, frames, mirrors, hooks, and decorations; installing routers, cable organizers, car interiors, and small item organizers; or tackling countless DIY projects – providing a strong, invisible, and reliable solution. 40Pcs Heavy Duty Double Sided Adhesive Pads, 3mm Thick Black Foam Mounting Tape - Super Strong Waterproof for Walls, Pictures, Cars, Home & Office (Pre-Cut Rectangles)