Features: 1. NO GLUE, NO STICKING REQUIRED: The piano note strip is made of silicone and designed in a series format, eliminating the need to adhere to keys like traditional piano stickers. Easy to install and remove without leaving residue, keeping your keyboard clean. 2. DOUBLE STAFF DISPLAY: Displays each key's note on both treble and bass staves, helping users quickly locate the correct key, compatible with standard piano sheet music notation. 3. BEGINNER FRIENDLY: No prior knowledge of key names or Middle C required. Simply place the note strips on the piano keyboard for immediate use. 4. REMOVABLE AND REUSABLE: Can be removed when you become familiar with key positions and reinstalled as needed for practice. 5. FULL 88-KEY COMPATIBILITY: Designed to fit standard 88-key pianos, including grand pianos, upright pianos, and digital pianos. Specifications: Material: Silicone Product Color: Black & White, Colorful Package Size: 16.5 x 8 x 1.5 cm Package Weight: 120 g Package Included: 1 x Piano Notes Guide