What is the use of silica gel?

An excellent question. Silica gel's main purpose is to be a desiccant. In essence, it is a powerful drying agent. It avidly absorbs moisture from its immediate surroundings. This protects sensitive items like electronics or leather goods from damage caused by humidity. Think of it as a tiny guardian. It creates a protective, dry environment, preventing the growth of mould or corrosion. It is remarkably simple yet highly effective in preserving the integrity of products.