This is a set of 9pcs guitar string winders which are made of plastic for durable and use. It is lightweight, compact, easy to use. Besides, it can loosen and tighten strings by unwinding and winding at the tuning pegs. Suitable for most acoustic and electric guitars. Feature - ColorAssorted Color - Material: Plastic. - Size: About 9.2 x 5.3 x 1.5cm. - This is a set of 9pcs guitar string winders which are made of plastic for durable and use. - Lightweight, compact, easy to use. Can loosen and tighten strings by unwinding and winding at the tuning pegs. - Can also pull out the bridge with the . A very handy guitar repair tool. - Suitable for most acoustic and electric guitars. - NOTE: The color of product will be delivered randomly. Package list: 16 x Portable Plastic Acoustic Guitar String Winders Bridge Pin Peg Pullers