Features: Mastery the rhythm effortlessly with our rhythm pocket card, designing to enhances your music learning and playing efficiency. Featuring a portable designs for easy carrying, clear marking for convenient reading, and durablity acrylic material for long lastings use. For music beginner, students, and instrumentally enthusiasts look to improve their sense of rhythm. Perfect for classroom teaching assistance, self practice guidance, band rehearsals reference, and stage performances preparation. This essential tool help musicians stay in sync and achieve precise, making it a must having addition to any music toolkit. Specifications: Component:Acrylic Size:Approx.86x54mm/3.38x2.12inch Package Includes: 1pcs Rhythm Pocket Card note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual coloring of the item. Thanks for your understandings.