【High-Quality Metal Material】 Say goodbye to the fragility and cheapness of ordinary plastic hooks. We use high-quality stainless steel that is not only waterproof and rustproof but also looks more textured. 【15-Pound Weight Capacity】 The back of the hook uses strong adhesive, providing excellent adhesion strength. These hooks can withstand up to 15 pounds of weight and won't fall off when exposed to water, making them suitable for picture frames of various sizes and weights.