Features: 1. NO GLUE, NO STICKING REQUIRED: The piano note strip is made of silicone and connects in series, so there is no need to adhere to the keys like traditional piano stickers. Easy to install and remove without leaving residue, keeping your keyboard clean. 2. DOUBLE STAFF DISPLAY: Each key is labeled with note names on a dual staff format, helping users locate keys faster by matching standard treble and bass clef notation used in piano sheet music. 3. BEGINNER FRIENDLY: No prior knowledge of key names or Middle C location is needed. Simply place the note strips on the piano keyboard for quick setup. 4. REMOVABLE AND REUSABLE: Once you become familiar with the keyboard layout and octave positions, the strips can be removed. They can be reinstalled at any time if additional guidance is needed. 5. FITS 88-KEY FULL-SIZED KEYBOARDS: Compatible with standard 88-key pianos, including grand pianos, upright pianos, digital pianos, and electronic keyboards. Specifications: Material: Silicone Product Color: Black & White, Colorful Package Dimensions: 16.5 x 8 x 1.5 cm Package Weight: 120 g Package Included: 1 x Piano Notes Guide