DescriptionThese products are made of zinc alloy materials and are durable for your long-term use. These products can easily clamp the guitar and quickly change their position without disturbing the sound of the guitar.Features-Color: Black -Material:Zinc alloy -Size: About9.00X7.20X1.30cm/3.54X2.83X0.51in -Suitable for electric guitar, acoustic guitar, ukulele, banjo, folk guitar and mandolin. -This product can be released quickly and easily without disturbing the tuning. -Accurate and convenient. This is a great project for beginners or experienced players. -Selected top grade zinc alloy material, durable and practical, is a good helper for guitarists. -The product has exquisite appearance and simple design, which is suitable for people to use.