The D'Addario Planet Waves NS Micro Violin Tuner is a high-quality device designed specifically for tuning violins. With a compact size of 5.750 inches in length and 3.750 inches in width, it is convenient for musicians to carry around for quick and accurate tuning on the go. Made by the well-known brand D'Addario, this tuner is reliable and durable, ensuring that musicians can always rely on it to provide accurate readings when tuning their violins. Whether used by beginners or professionals, this product is a must-have accessory for any violin player.