This precision memory spring needle combines durable materials and playerfocused design to deliver a responsive feel and warm, focused tone for musical applications. Key benefits Durable and elastic spring core: Memory spring needle made from special piano spring offers reliable elasticity and long service life for consistent performance. Strong airtightness: Professional waterproof leather pad and elastic leather cover provide dependable sealing to maintain sound integrity and responsiveness. Playability on the C key: C key action is easy to play, with a focused and pleasant tone that supports clear melodic expression. Playeroriented operation: Simple, intuitive design makes setup and use straightforward for performers of varied skill levels. Warm, refined sound: Designed to produce a warm tonal character that sits well in ensembles, recordings, and solo practice. Features and specifications Core material: Special piano spring for memory and durability. Sealing components: Waterproof leather pad and elastic leather cover for enhanced airtightness. Tone profile: Warm and focused, particularly responsive on the C key. Usability: Easy to operate, intended for musicians and players seeking reliable, repeatable performance. Practical applications Live performance: Use to add a warm, distinct tone when performing on stage or in small venues to enhance musical presence. Studio recording: Employ for clear, focused sound capture where consistent playability and airtightness support reliable takes. Practice and teaching: Suitable for home practice or lessons where ease of operation and a pleasant C key response help improve technique. Why choose this product It solves common problems of inconsistent action and poor sealing by combining a resilient piano spring core with professionalgrade leather sealing components. It stands out for balancing durability, playability, and tonal warmth without sacrificing reliable airtight performance. Compatibility note Designed for musical applications where a memory spring needle and responsive C key action are required. Check instrument requirements before use.