Four brush prototypes, including traditional and smart UV/nylon bristled versions, displayed on a blue background with labels.

A product prototype poster with a Steel Blue (#3B8EA5) background and Electric Green (#7FDBA3) text. Include four labeled brush designs arranged in a 2x2 grid. Top-left: Image of a traditional wooden brush (Label: "1. Traditional Brush") with no tech features. Top-right: A high-tech bamboo brush (Label: "2. Smart Fiber-UV Brush (Normal Mode)") with charcoal-colored bamboo handle, rubber grips at top and bottom ends. Optical fiber bristles with subtle UV lights (some lit, some unlit), and a solar panel with capacitor under a translucent sheath near the bottom. Bottom-left: Same high-tech brush with bristles folded in (Label: "3. UV-Fiber Folded (Button Pressed Mode)"). Show folded optical bristles inside the head. Bottom-right: Same brush with circular nylon bristles activated around the tip (Label: "4. Nylon Bristles Activated (Deep Clean Mode)"). All brushes (except #1) have bamboo handles (Charcoal color), black rubber grips, and feature a push button. Poster title at top center: "PROTOTYPE" in Electric Green text. No extra text or branding. See more