Sponge pad: The hook is equipped with a sponge pad to stabilize the violin, which is firm and stable without shakingProduct material: Made of high-quality plastic and solid wood base, real materials, high quality, and very durable1PC violin hookSmall retractable side hook: There is a small retractable hook on the side of the hook, you can use it to place your bowFEATUREThe product contains: Product size: The size of this violin hook is 14.5 X 9.7 X 4.5 CM/5.71 X 3.82 X 1.77 inHow to use: After the piano head is stuck with the sponge on the hook, gently put it down, the hook will automatically lock, please note, please confirm whether the hook is installed and stable before placing the small advance