See Repair blow dust ball with a silicone protective case. The case shields the full metal mouthpiece, guarding against scratches during cleaning and adding an extra layer of safety. - Excellent dust protection: unidirectional air intake prevents air return, keeping dirt and dust away from your tools and reducing secondary pollution for effective, easy cleaning. - Improved efficiency: strong air volume quickly blows dust out of hard to reach corners. Easy to clean, saving time and labor and leaving no crevices. - Durable rubber construction: soft, safe, and wear resistant. Non deformable for precise cleaning and scratch free handling of delicate components. - Compatibility and use: designed for precision cleaning of repair tools and equipment. Suitable for electronics repair, keyboard and computer maintenance, and small optical or optical-adjacent components. - Use scenarios: - Electronics repair and maintenance: removes dust from connectors, sockets, and tight spaces inside devices. - Keyboard and computer assemblies: clears debris from keys and chassis without disassembly. - Camera or lens care: assists in blowing dust from small housings and delicate surfaces during routine maintenance.