Description To assure proper note selection, scale is arranged in sequence and clearly marked by note notations on covers. Suitable for most music instruments' tuning basing on chromatic. It also can be used as an instrument to develop the children's pitch. Made of premium materials, sensitive and durable to use. Practical accessory for musician or music instructor. Features - Color: Silver.- Material: Metal, plastic.- Size: 6.40X6.40X1.00cm/2.52X2.52X0.39in.- Our 13 pitch pipe tuner is made of metal and and plastic material with fine machining, environmental friendly, sensitive, sturdy, anti-rust and durable.- To assure proper note selection, scale is arranged in sequence and clearly marked by note notations on covers.- With small body and carrying box, the pitch pipe chromatic tuner is easy and convenient to carry, and will not occupy too much your space.- This 13 pitch pipe chromatic tuner is suitable for most music instruments' tuning basing on chromatic.- It also can be used as an instrument to develop the children's pitch.Packing list: 1 x Guitar Tuner (C-C)1 x Guitar Tuner (F-F)