and the length in size 30 is about 18 cm

Panel: Ingeman spruce

Applicable scene: suitable for guitar

Insole material: artificial fur

Bag S M 2pcs 500ML BTL : 1*black bag S/M+2*500ml bottles

Multi-functional Smart Guitar Tuner Kids' Shoes and the length in sizeFeatures: The smart tuner and string winder is a 2 in 1 multifunctional tool designed for string instrument players. It supports auto tuning, semi auto tuning, and custom tuning modes, each optimized to deliver an accurate and smooth tuning experience. Suitable for acoustic guitar, classical guitar, electric guitar, ukulele, and chromatic tuning, it features a colorful LCD that clearly shows tuning status for easy use. String winding is fast and