Description This item is a erhu tuner , with a exquisite design, is made of premium plastic and metal, durable, fashionable and luxurious. Using labor-saving principle, good flexibility, fatigue resistance, long service life. Protect the guitar and prevent scratches. Features -Color: Black -Material: Plastic, Metal. -Size: About5.00X4.50X3.00cm/ 1.97X1.77X1.18in -Power Supply: 3V -The product has good workmanship and high class material and creative design. - The product can be given as a good gift to your friends, which makes them feel happy. - The product is flexible for people to switch the turning mode. - The product has creative outlook and simple design, which is practical for people to use. - The product is suitable for most people to take advantage of it all the time. Package list: 1 x Tuner