Description This is a universal violinhumidifier that can protect your precious instrument from shrinking, warping and cracking under dry and difficult conditions.This humidifier uses premium rubber materials and can serve you for a long time. Features - Color: White -Material:Rubber - Size: 30.00X1.20X1.20cm/11.79X0.47X0.47in -Professional violin and viola humidifier accessories to maintain the quality of the equipment. - Soft, durable rubber material, strong and durable, avoid frequent replacement and save money; practical. - Easy to insert, just put in water for 20 seconds, take out, and put in F hole. - Prevents cracking, poor string action, buzzing, protruding wire ends, top settling and other damage from drying. -You can buy one for your good friends or family members who are learning violin.Package list: 1 x violin humidifier