Grover, Humidifier for Violin & Viola (5460)

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About This Designed to slowly release moisture and maintain humidity to help prevent cracking and warping of your instrument Protect your instrument from damage caused by dry, warm air Insert into the sound hole of your instrument Contains humidity level indicator Full instructions included Overview Brand : Grover Special Feature : Quiet Color : Color may vary Operation Mode : Manual Product Dimensions : 10"D x 5"W x 0.5"H Show more