Perfect tool kit for string instrument.Wonderful gift choice for beginners and pros Multi function, fits for string instrument cleaning, repairing and maintenance, useful luthier tools. Suitable for string instruments such as acoustic/ electric guitar, ukulele, bass, banjo, and etc. Wonderful gift choice for family members and friends who are music lovers. Great for beginners and pros. Perfect tool kit for string instrument. Wonderful gift choice for beginners and pros. With zipper storage bag, handy and convenient. size: 25 x 13 x 3cm Material: Metal+Plastic colour: As Shown Package Contents: 1 x guard strings 6 x string nails 8 x hexagonal wrench 9 x T shaped ruler 10 x grinding file 2 x grinding pads 13 x grinding file needle 1 x string high measuring ruler 1 x Space ruler 1 x sanding block 1 x polishing stone 1 x piano cloth 1 x strings (1-6 string) 5 x cellulu paddles 1 x storage package Only the above package content, other products are not included. Note: Light reflection 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.