Description This is a universal guitar humidifier that can protect your precious instrument from shrinking, warping and cracking under dry and difficult conditions.This humidifier uses high-quality materials and can serve you for a long time. Features -Color: As shown -Material: Iron, sponge, ABS -Size: About12.50X11.00X3.50cm/4.91X4.32X1.38in -Excellent workmanship makes the instrument smooth and does not hurt the body, you can be relieved to use. -The operation method is simple, it will not take you too much time, and it will not harm your guitar. It is your best choice. -It is suitable for folk guitars of various sizes and shapes on the market, which is very practical. -It can effectively prevent the front panel and back panel from bowing or denting caused by weather and causing the piano box to break. -We always provide you with the best quality products on the premise of high cost performance. Package List1 x humidifier 1 x water bottle