Product Name: Smart Hook J-Hook (White) Seller: Nitori Co., Ltd. Features: Specifically designed for gypsum board walls, leaving minimal marks upon removal. Overall Weight Capacity: Approximately 3 kg Materials: The hook is made of stainless steel, and the "Rakupin" (easy pin) is composed of nylon, stainless steel, and polypropylene. It can be easily and securely fixed using the included "Rakupin," and no tools are required.