set2: 1 x tail library + 1 x bow screw & 1 x Violin bow hair Good for any size Violin, Viola, Cello and Bass bows All hairs are of similar thickness. This high quality hank of Mongolian natural horsehair is prepared and ready to re-hair your bows. which is good for all sizes of your violin, viola or cello. One end is already prepared for mounting and this makes life a lot easier. Model Number: Violin Bow Frog Use: Violin Use Ebony Violin Bow Frog for Violin Bow Parts Accessories. Designed for 4/4 violins. Beautiful eyes inlay, double pearl slide. A novice violinist can now replace horsehair on his own and save money and big time. Color: Photo Color model: M01595 Material: Horse hair/metal size: 78CM Great replacement for your old, dirty or bow frog. Size: . 45x13x20mm/1.77x0.51x0.79inch Screw Length: . 61mm/2.40inch Package Contents: 1 x tail library 1 x bow screw 1 x Violin bow hair Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.