Durable metal construction designed for reliable finger protection and long lasting performance - This slow closing device uses metal materials to provide strong, durable support for piano lids and covers. Slow closing mechanism to prevent sudden lid drop and finger injuries - The delay function softens lid closing, reducing pinch points and the risk of fingers being hurt when the piano cover is closed. Easy installation for quick setup - Choose a suitable location on the lid or hinge area, then insert the device in place. No complicated tools required. Metal buffer for controlled, smooth lid descent - Helps prevent the keyboard cover from suddenly falling and reduces the chance of accidental contact with your fingers. Simple, user friendly descent control device - Designed for straightforward operation and a consistent closing experience. Compatibility and performance - Designed for standard piano lids and covers; built to deliver reliable performance with common upright pianos. Use scenarios - Home use with kids: install to soften lid closing and protect small fingers during everyday piano use. - Classroom or studio: prevents lid from snapping shut during lessons, reducing noise and safety concerns. - Late night practice or beginners: enables quiet, controlled closing for safer, easier handling of the piano lid.