The S-300 is a high-performance waterproof sticker designed for electronic devices like tablets and smartphones. It features strong adhesive properties while being resistant to both water and humidity, making it ideal for long-term device protection and customization. Key features: • Waterproof construction • Humidity resistant • Strong adhesive backing • Compatible with electronic devices • Durable material • Clear visibility The sticker appears to have a circular design with a soft pink and blue gradient effect. Based on the demonstration image showing application on an iPad Air, the sticker maintains good visibility and adherence on aluminum surfaces while being easily removable when needed. The product's waterproof and humidity-proof properties make it suitable for devices that may be exposed to moisture or varying environmental conditions.