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, helping keep your keyboard clean. 2. DOUBLE STAFF DISPLAY: Displays each key's note on both treble and bass staves, allowing faster identification of corresponding keys, matching the standard structure used in piano sheet music. 3. BEGINNER FRIENDLY: No need to know key names or locate Middle C. Simply place the note strips on the piano keyboard for immediate use. Setup takes seconds. 4. REMOVABLE AND REUSABLE: Once you become familiar with key positions and octave patterns, the strips can be removed. They can be reinstalled at any time if additional guidance is needed. 5. FITS 88-KEY INSTRUMENTS: Compatible with full-sized 88-key pianos, including grand pianos, upright pianos, digital pianos, and 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